78140016 has 60 divisors (see below), whose sum is σ = 228201168. Its totient is φ = 24913152.

The previous prime is 78140009. The next prime is 78140071. The reversal of 78140016 is 61004187.

It is a happy number.

It is a super-2 number, since 2×78140016² = 12211724200960512, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8485 + ... + 15108.

Almost surely, 2^78140016 is an apocalyptic number.

It is an amenable number.

78140016 is an abundant number, since it is smaller than the sum of its proper divisors (150061152).

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

78140016 is a wasteful number, since it uses less digits than its factorization.

78140016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23630 (or 23621 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 78140016 is about 8839.6841572536. The cubic root of 78140016 is about 427.5213737133.

The spelling of 78140016 in words is "seventy-eight million, one hundred forty thousand, sixteen".