74286020 has 24 divisors (see below), whose sum is σ = 156870168. Its totient is φ = 29548800.

The previous prime is 74286011. The next prime is 74286053. The reversal of 74286020 is 2068247.

It can be written as a sum of positive squares in 4 ways, for example, as 222784 + 74063236 = 472^2 + 8606^2 .

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6641 + ... + 13880.

It is an arithmetic number, because the mean of its divisors is an integer number (6536257).

Almost surely, 2^74286020 is an apocalyptic number.

It is an amenable number.

74286020 is an abundant number, since it is smaller than the sum of its proper divisors (82584148).

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

74286020 is a wasteful number, since it uses less digits than its factorization.

74286020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20711 (or 20709 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 74286020 is about 8618.9338087724. The cubic root of 74286020 is about 420.3738545749.

The spelling of 74286020 in words is "seventy-four million, two hundred eighty-six thousand, twenty".