78252332 has 12 divisors (see below), whose sum is σ = 137098920. Its totient is φ = 39081216.

The previous prime is 78252331. The next prime is 78252337. The reversal of 78252332 is 23325287.

It is a super-2 number, since 2×78252332² = 12246854926876448, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78252331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7157 + ... + 14412.

It is an arithmetic number, because the mean of its divisors is an integer number (11424910).

Almost surely, 2^78252332 is an apocalyptic number.

It is an amenable number.

78252332 is a deficient number, since it is larger than the sum of its proper divisors (58846588).

78252332 is a wasteful number, since it uses less digits than its factorization.

78252332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22480 (or 22478 counting only the distinct ones).

The product of its digits is 20160, while the sum is 32.

The square root of 78252332 is about 8846.0348179283. The cubic root of 78252332 is about 427.7261109067.

The spelling of 78252332 in words is "seventy-eight million, two hundred fifty-two thousand, three hundred thirty-two".