74472378 has 16 divisors (see below), whose sum is σ = 150033600. Its totient is φ = 24642656.

The previous prime is 74472373. The next prime is 74472383. The reversal of 74472378 is 87327447.

It is an interprime number because it is at equal distance from previous prime (74472373) and next prime (74472383).

It is a super-2 number, since 2×74472378² = 11092270169949768, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (74472373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44478 + ... + 46121.

It is an arithmetic number, because the mean of its divisors is an integer number (9377100).

Almost surely, 2^74472378 is an apocalyptic number.

74472378 is an abundant number, since it is smaller than the sum of its proper divisors (75561222).

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

74472378 is a wasteful number, since it uses less digits than its factorization.

74472378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90741.

The product of its digits is 263424, while the sum is 42.

The square root of 74472378 is about 8629.7380029755. The cubic root of 74472378 is about 420.7250853653.

The spelling of 74472378 in words is "seventy-four million, four hundred seventy-two thousand, three hundred seventy-eight".