64123026 has 16 divisors (see below), whose sum is σ = 139904928. Its totient is φ = 19431200.

The previous prime is 64123021. The next prime is 64123049. The reversal of 64123026 is 62032146.

It is a super-2 number, since 2×64123026² = 8223524926793352, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 64122987 and 64123005.

It is not an unprimeable number, because it can be changed into a prime (64123021) 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, 485715 + ... + 485846.

It is an arithmetic number, because the mean of its divisors is an integer number (8744058).

Almost surely, 2^64123026 is an apocalyptic number.

64123026 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

64123026 is an abundant number, since it is smaller than the sum of its proper divisors (75781902).

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

64123026 is a wasteful number, since it uses less digits than its factorization.

64123026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 971577.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 64123026 is about 8007.6854333821. The cubic root of 64123026 is about 400.2561401123.

The spelling of 64123026 in words is "sixty-four million, one hundred twenty-three thousand, twenty-six".