74132040 has 32 divisors (see below), whose sum is σ = 222396480. Its totient is φ = 19768512.

The previous prime is 74132029. The next prime is 74132041. The reversal of 74132040 is 4023147.

It is a junction number, because it is equal to n+sod(n) for n = 74131998 and 74132016.

It is not an unprimeable number, because it can be changed into a prime (74132041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 308764 + ... + 309003.

It is an arithmetic number, because the mean of its divisors is an integer number (6949890).

Almost surely, 2^74132040 is an apocalyptic number.

It is an amenable number.

74132040 is an abundant number, since it is smaller than the sum of its proper divisors (148264440).

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

74132040 is a wasteful number, since it uses less digits than its factorization.

74132040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617781 (or 617777 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 74132040 is about 8609.9965156787. The cubic root of 74132040 is about 420.0832034707.

Adding to 74132040 its reverse (4023147), we get a palindrome (78155187).

It can be divided in two parts, 7413 and 2040, that added together give a triangular number (9453 = T₁₃₇).

The spelling of 74132040 in words is "seventy-four million, one hundred thirty-two thousand, forty".