78472344 has 16 divisors (see below), whose sum is σ = 196180920. Its totient is φ = 26157440.

The previous prime is 78472333. The next prime is 78472349. The reversal of 78472344 is 44327487.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78472349) 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, 1634817 + ... + 1634864.

Almost surely, 2^78472344 is an apocalyptic number.

It is an amenable number.

78472344 is an abundant number, since it is smaller than the sum of its proper divisors (117708576).

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

78472344 is a wasteful number, since it uses less digits than its factorization.

78472344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3269690 (or 3269686 counting only the distinct ones).

The product of its digits is 150528, while the sum is 39.

The square root of 78472344 is about 8858.4617174767. The cubic root of 78472344 is about 428.1265966090.

The spelling of 78472344 in words is "seventy-eight million, four hundred seventy-two thousand, three hundred forty-four".