1642600260 has 144 divisors (see below), whose sum is σ = 5710303872. Its totient is φ = 374400000.

The previous prime is 1642600213. The next prime is 1642600273. The reversal of 1642600260 is 620062461.

It is a happy number.

1642600260 is a `hidden beast` number, since 16 + 42 + 600 + 2 + 6 + 0 = 666.

It is a super-2 number, since 2×1642600260² = 5396271228304135200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 503635 + ... + 506885.

It is an arithmetic number, because the mean of its divisors is an integer number (39654888).

Almost surely, 2^1642600260 is an apocalyptic number.

1642600260 is a gapful number since it is divisible by the number (10) 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 1642600260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2855151936).

1642600260 is an abundant number, since it is smaller than the sum of its proper divisors (4067703612).

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

1642600260 is a wasteful number, since it uses less digits than its factorization.

1642600260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3674 (or 3669 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 1642600260 is about 40529.0051691378. The cubic root of 1642600260 is about 1179.8966346305.

The spelling of 1642600260 in words is "one billion, six hundred forty-two million, six hundred thousand, two hundred sixty".