74503764 has 18 divisors (see below), whose sum is σ = 188329050. Its totient is φ = 24834576.

The previous prime is 74503733. The next prime is 74503771. The reversal of 74503764 is 46730547.

It can be written as a sum of positive squares in only one way, i.e., 73616400 + 887364 = 8580^2 + 942^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 2069549 = 74503764 / (7 + 4 + 5 + 0 + 3 + 7 + 6 + 4).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1034739 + ... + 1034810.

It is an arithmetic number, because the mean of its divisors is an integer number (10462725).

Almost surely, 2^74503764 is an apocalyptic number.

It is an amenable number.

74503764 is an abundant number, since it is smaller than the sum of its proper divisors (113825286).

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

74503764 is a wasteful number, since it uses less digits than its factorization.

74503764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2069559 (or 2069554 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 36.

The square root of 74503764 is about 8631.5562907276. The cubic root of 74503764 is about 420.7841812040.

The spelling of 74503764 in words is "seventy-four million, five hundred three thousand, seven hundred sixty-four".