78260274 has 24 divisors (see below), whose sum is σ = 169827840. Its totient is φ = 26046168.

The previous prime is 78260269. The next prime is 78260309. The reversal of 78260274 is 47206287.

It is a super-2 number, since 2×78260274² = 12249340973110152, which contains 22 as substring.

It is a Curzon 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, 9919 + ... + 15965.

It is an arithmetic number, because the mean of its divisors is an integer number (7076160).

Almost surely, 2^78260274 is an apocalyptic number.

78260274 is an abundant number, since it is smaller than the sum of its proper divisors (91567566).

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

78260274 is a wasteful number, since it uses less digits than its factorization.

78260274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6774 (or 6771 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 36.

The square root of 78260274 is about 8846.4837082312. The cubic root of 78260274 is about 427.7405807027.

The spelling of 78260274 in words is "seventy-eight million, two hundred sixty thousand, two hundred seventy-four".