102372978 has 16 divisors (see below), whose sum is σ = 205090560. Its totient is φ = 34066896.

The previous prime is 102372971. The next prime is 102372989. The reversal of 102372978 is 879273201.

It is a super-3 number, since 3×102372978³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (102372971) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10413 + ... + 17696.

It is an arithmetic number, because the mean of its divisors is an integer number (12818160).

Almost surely, 2^102372978 is an apocalyptic number.

102372978 is an abundant number, since it is smaller than the sum of its proper divisors (102717582).

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

102372978 is a wasteful number, since it uses less digits than its factorization.

102372978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28721.

The product of its (nonzero) digits is 42336, while the sum is 39.

The square root of 102372978 is about 10117.9532515228. The cubic root of 102372978 is about 467.8016819898.

The spelling of 102372978 in words is "one hundred two million, three hundred seventy-two thousand, nine hundred seventy-eight".