10239012 has 72 divisors (see below), whose sum is σ = 30331392. Its totient is φ = 2851200.

The previous prime is 10238993. The next prime is 10239013. The reversal of 10239012 is 21093201.

It is a happy number.

It is a super-2 number, since 2×10239012² = 209674733472288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (10239013) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9837 + ... + 10827.

Almost surely, 2^10239012 is an apocalyptic number.

10239012 is a gapful number since it is divisible by the number (12) 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 10239012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15165696).

10239012 is an abundant number, since it is smaller than the sum of its proper divisors (20092380).

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

10239012 is a wasteful number, since it uses less digits than its factorization.

10239012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1049 (or 1044 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 10239012 is about 3199.8456212761. The cubic root of 10239012 is about 217.1464251326.

The spelling of 10239012 in words is "ten million, two hundred thirty-nine thousand, twelve".