102656040 has 32 divisors (see below), whose sum is σ = 307968480. Its totient is φ = 27374912.

The previous prime is 102656039. The next prime is 102656041. The reversal of 102656040 is 40656201.

It is an interprime number because it is at equal distance from previous prime (102656039) and next prime (102656041).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 102656040.

It is not an unprimeable number, because it can be changed into a prime (102656041) 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 7 ways as a sum of consecutive naturals, for example, 427614 + ... + 427853.

It is an arithmetic number, because the mean of its divisors is an integer number (9624015).

Almost surely, 2^102656040 is an apocalyptic number.

102656040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102656040 is an abundant number, since it is smaller than the sum of its proper divisors (205312440).

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

102656040 is a wasteful number, since it uses less digits than its factorization.

102656040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855481 (or 855477 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 102656040 is about 10131.9317013095. The cubic root of 102656040 is about 468.2324435212.

The spelling of 102656040 in words is "one hundred two million, six hundred fifty-six thousand, forty".