74299940 has 96 divisors (see below), whose sum is σ = 186109056. Its totient is φ = 24560640.

The previous prime is 74299931. The next prime is 74299961. The reversal of 74299940 is 4999247.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a junction number, because it is equal to n+sod(n) for n = 74299891 and 74299900.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 237224 + ... + 237536.

It is an arithmetic number, because the mean of its divisors is an integer number (1938636).

Almost surely, 2^74299940 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 74299940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93054528).

74299940 is an abundant number, since it is smaller than the sum of its proper divisors (111809116).

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

74299940 is a wasteful number, since it uses less digits than its factorization.

74299940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429 (or 427 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 74299940 is about 8619.7412954218. The cubic root of 74299940 is about 420.4001100246.

The spelling of 74299940 in words is "seventy-four million, two hundred ninety-nine thousand, nine hundred forty".