78354132 has 12 divisors (see below), whose sum is σ = 182826336. Its totient is φ = 26118040.

The previous prime is 78354097. The next prime is 78354137. The reversal of 78354132 is 23145387.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×78354132² = 12278740002946848, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78354093 and 78354102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78354137) 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, 3264744 + ... + 3264767.

It is an arithmetic number, because the mean of its divisors is an integer number (15235528).

Almost surely, 2^78354132 is an apocalyptic number.

It is an amenable number.

78354132 is an abundant number, since it is smaller than the sum of its proper divisors (104472204).

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

78354132 is a wasteful number, since it uses less digits than its factorization.

78354132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6529518 (or 6529516 counting only the distinct ones).

The product of its digits is 20160, while the sum is 33.

The square root of 78354132 is about 8851.7869382402. The cubic root of 78354132 is about 427.9115096411.

The spelling of 78354132 in words is "seventy-eight million, three hundred fifty-four thousand, one hundred thirty-two".