74319870 has 16 divisors (see below), whose sum is σ = 178367760. Its totient is φ = 19818624.

The previous prime is 74319863. The next prime is 74319871. The reversal of 74319870 is 7891347.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74319871) 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, 1238635 + ... + 1238694.

It is an arithmetic number, because the mean of its divisors is an integer number (11147985).

Almost surely, 2^74319870 is an apocalyptic number.

74319870 is an abundant number, since it is smaller than the sum of its proper divisors (104047890).

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

74319870 is a wasteful number, since it uses less digits than its factorization.

74319870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2477339.

The product of its (nonzero) digits is 42336, while the sum is 39.

The square root of 74319870 is about 8620.8972850858. The cubic root of 74319870 is about 420.4376956322.

The spelling of 74319870 in words is "seventy-four million, three hundred nineteen thousand, eight hundred seventy".