74866428 has 72 divisors (see below), whose sum is σ = 232927968. Its totient is φ = 19744128.

The previous prime is 74866427. The next prime is 74866469. The reversal of 74866428 is 82466847.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74866423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8151 + ... + 14702.

Almost surely, 2^74866428 is an apocalyptic number.

74866428 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is an amenable number.

74866428 is an abundant number, since it is smaller than the sum of its proper divisors (158061540).

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

74866428 is a wasteful number, since it uses less digits than its factorization.

74866428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22883 (or 22878 counting only the distinct ones).

The product of its digits is 516096, while the sum is 45.

The square root of 74866428 is about 8652.5388181735. The cubic root of 74866428 is about 421.4658305740.

It can be divided in two parts, 748 and 66428, that added together give a palindrome (67176).

The spelling of 74866428 in words is "seventy-four million, eight hundred sixty-six thousand, four hundred twenty-eight".