1642453344 has 108 divisors (see below), whose sum is σ = 5433341004. Its totient is φ = 469268352.

The previous prime is 1642453339. The next prime is 1642453349. The reversal of 1642453344 is 4433542461.

1642453344 is a `hidden beast` number, since 1 + 64 + 24 + 533 + 44 = 666.

It is an interprime number because it is at equal distance from previous prime (1642453339) and next prime (1642453349).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1642453299 and 1642453308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1642453349) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 44082 + ... + 72305.

It is an arithmetic number, because the mean of its divisors is an integer number (50308713).

Almost surely, 2^1642453344 is an apocalyptic number.

1642453344 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1642453344 is an abundant number, since it is smaller than the sum of its proper divisors (3790887660).

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

1642453344 is a wasteful number, since it uses less digits than its factorization.

1642453344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116417 (or 116399 counting only the distinct ones).

The product of its digits is 138240, while the sum is 36.

The square root of 1642453344 is about 40527.1926488870. The cubic root of 1642453344 is about 1179.8614564911.

The spelling of 1642453344 in words is "one billion, six hundred forty-two million, four hundred fifty-three thousand, three hundred forty-four".