78124416 has 32 divisors (see below), whose sum is σ = 207519000. Its totient is φ = 26041344.

The previous prime is 78124411. The next prime is 78124429. The reversal of 78124416 is 61442187.

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×78124416² = 12206848750682112, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78124411) 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, 101341 + ... + 102108.

Almost surely, 2^78124416 is an apocalyptic number.

It is an amenable number.

78124416 is an abundant number, since it is smaller than the sum of its proper divisors (129394584).

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

78124416 is a wasteful number, since it uses less digits than its factorization.

78124416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203466 (or 203454 counting only the distinct ones).

The product of its digits is 10752, while the sum is 33.

The square root of 78124416 is about 8838.8017287413. The cubic root of 78124416 is about 427.4929214655.

The spelling of 78124416 in words is "seventy-eight million, one hundred twenty-four thousand, four hundred sixteen".