78232152 has 64 divisors (see below), whose sum is σ = 199584000. Its totient is φ = 25550720.

The previous prime is 78232117. The next prime is 78232183. The reversal of 78232152 is 25123287.

It is a super-2 number, since 2×78232152² = 12240539213102208, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 468373 + ... + 468539.

It is an arithmetic number, because the mean of its divisors is an integer number (3118500).

Almost surely, 2^78232152 is an apocalyptic number.

It is an amenable number.

78232152 is an abundant number, since it is smaller than the sum of its proper divisors (121351848).

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

78232152 is a wasteful number, since it uses less digits than its factorization.

78232152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456 (or 452 counting only the distinct ones).

The product of its digits is 6720, while the sum is 30.

The square root of 78232152 is about 8844.8941203386. The cubic root of 78232152 is about 427.6893398832.

The spelling of 78232152 in words is "seventy-eight million, two hundred thirty-two thousand, one hundred fifty-two".