1642727448 has 96 divisors (see below), whose sum is σ = 4610885760. Its totient is φ = 527800320.

The previous prime is 1642727447. The next prime is 1642727453. The reversal of 1642727448 is 8447272461.

1642727448 is a `hidden beast` number, since 164 + 27 + 27 + 448 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1642727447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 616936 + ... + 619592.

It is an arithmetic number, because the mean of its divisors is an integer number (48030060).

Almost surely, 2^1642727448 is an apocalyptic number.

1642727448 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1642727448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2305442880).

1642727448 is an abundant number, since it is smaller than the sum of its proper divisors (2968158312).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1642727448 is a wasteful number, since it uses less digits than its factorization.

1642727448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2977 (or 2970 counting only the distinct ones).

The product of its digits is 602112, while the sum is 45.

The square root of 1642727448 is about 40530.5742372348. The cubic root of 1642727448 is about 1179.9270873266.

The spelling of 1642727448 in words is "one billion, six hundred forty-two million, seven hundred twenty-seven thousand, four hundred forty-eight".