74821474 has 64 divisors (see below), whose sum is σ = 145861632. Its totient is φ = 27993600.

The previous prime is 74821469. The next prime is 74821489. The reversal of 74821474 is 47412847.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 275959 + ... + 276229.

It is an arithmetic number, because the mean of its divisors is an integer number (2279088).

Almost surely, 2^74821474 is an apocalyptic number.

74821474 is a gapful number since it is divisible by the number (74) formed by its first and last digit.

74821474 is a deficient number, since it is larger than the sum of its proper divisors (71040158).

74821474 is a wasteful number, since it uses less digits than its factorization.

74821474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371.

The product of its digits is 50176, while the sum is 37.

The square root of 74821474 is about 8649.9406934383. The cubic root of 74821474 is about 421.3814564474.

74821474 divided by its sum of digits (37) gives a palindrome (2022202).

It can be divided in two parts, 748 and 21474, that added together give a palindrome (22222).

The spelling of 74821474 in words is "seventy-four million, eight hundred twenty-one thousand, four hundred seventy-four".