74972814 has 32 divisors (see below), whose sum is σ = 171714816. Its totient is φ = 21377280.

The previous prime is 74972783. The next prime is 74972819. The reversal of 74972814 is 41827947.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74972819) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23134 + ... + 26174.

It is an arithmetic number, because the mean of its divisors is an integer number (5366088).

Almost surely, 2^74972814 is an apocalyptic number.

74972814 is an abundant number, since it is smaller than the sum of its proper divisors (96742002).

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

74972814 is a wasteful number, since it uses less digits than its factorization.

74972814 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3640.

The product of its digits is 112896, while the sum is 42.

The square root of 74972814 is about 8658.6843111410. The cubic root of 74972814 is about 421.6653719142.

The spelling of 74972814 in words is "seventy-four million, nine hundred seventy-two thousand, eight hundred fourteen".