74669540 has 48 divisors (see below), whose sum is σ = 172053504. Its totient is φ = 26995200.

The previous prime is 74669513. The next prime is 74669599. The reversal of 74669540 is 4596647.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41132 + ... + 42908.

It is an arithmetic number, because the mean of its divisors is an integer number (3584448).

Almost surely, 2^74669540 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74669540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86026752).

74669540 is an abundant number, since it is smaller than the sum of its proper divisors (97383964).

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

74669540 is a wasteful number, since it uses less digits than its factorization.

74669540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1988 (or 1986 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 41.

The square root of 74669540 is about 8641.1538581372. The cubic root of 74669540 is about 421.0960412645.

The spelling of 74669540 in words is "seventy-four million, six hundred sixty-nine thousand, five hundred forty".