10239978 has 16 divisors (see below), whose sum is σ = 23405760. Its totient is φ = 2925696.

The previous prime is 10239973. The next prime is 10239989. The reversal of 10239978 is 87993201.

It is not an unprimeable number, because it can be changed into a prime (10239973) 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, 121863 + ... + 121946.

It is an arithmetic number, because the mean of its divisors is an integer number (1462860).

Almost surely, 2^10239978 is an apocalyptic number.

10239978 is an abundant number, since it is smaller than the sum of its proper divisors (13165782).

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

10239978 is a wasteful number, since it uses less digits than its factorization.

10239978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243821.

The product of its (nonzero) digits is 27216, while the sum is 39.

The square root of 10239978 is about 3199.9965624982. The cubic root of 10239978 is about 217.1532538140.

The spelling of 10239978 in words is "ten million, two hundred thirty-nine thousand, nine hundred seventy-eight".