74232978 has 8 divisors (see below), whose sum is σ = 148465968. Its totient is φ = 24744324.

The previous prime is 74232967. The next prime is 74232979. The reversal of 74232978 is 87923247.

It is a sphenic number, since it is the product of 3 distinct primes.

74232978 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (74232979) 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, 6186076 + ... + 6186087.

It is an arithmetic number, because the mean of its divisors is an integer number (18558246).

Almost surely, 2^74232978 is an apocalyptic number.

74232978 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

74232978 is a wasteful number, since it uses less digits than its factorization.

74232978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12372168.

The product of its digits is 169344, while the sum is 42.

The square root of 74232978 is about 8615.8561965715. The cubic root of 74232978 is about 420.2737784139.

It can be divided in two parts, 7423 and 2978, that added together give a palindrome (10401).

The spelling of 74232978 in words is "seventy-four million, two hundred thirty-two thousand, nine hundred seventy-eight".