102644300 has 108 divisors (see below), whose sum is σ = 259749000. Its totient is φ = 35059200.

The previous prime is 102644299. The next prime is 102644329. The reversal of 102644300 is 3446201.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

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 35 ways as a sum of consecutive naturals, for example, 205451 + ... + 205949.

Almost surely, 2^102644300 is an apocalyptic number.

102644300 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 102644300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129874500).

102644300 is an abundant number, since it is smaller than the sum of its proper divisors (157104700).

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

102644300 is a wasteful number, since it uses less digits than its factorization.

102644300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552 (or 534 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 102644300 is about 10131.3523282926. The cubic root of 102644300 is about 468.2145934318.

The spelling of 102644300 in words is "one hundred two million, six hundred forty-four thousand, three hundred".