78230544 has 160 divisors (see below), whose sum is σ = 246841344. Its totient is φ = 20866560.

The previous prime is 78230507. The next prime is 78230561. The reversal of 78230544 is 44503287.

It is a super-2 number, since 2×78230544² = 12240036029071872, 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 31 ways as a sum of consecutive naturals, for example, 409489 + ... + 409679.

Almost surely, 2^78230544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78230544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123420672).

78230544 is an abundant number, since it is smaller than the sum of its proper divisors (168610800).

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

78230544 is a wasteful number, since it uses less digits than its factorization.

78230544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285 (or 279 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 33.

The square root of 78230544 is about 8844.8032199705. The cubic root of 78230544 is about 427.6864095911.

The spelling of 78230544 in words is "seventy-eight million, two hundred thirty thousand, five hundred forty-four".