74620440 has 128 divisors (see below), whose sum is σ = 252100800. Its totient is φ = 19875456.

The previous prime is 74620421. The next prime is 74620457. The reversal of 74620440 is 4402647.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 87054 + ... + 87906.

Almost surely, 2^74620440 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 74620440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126050400).

74620440 is an abundant number, since it is smaller than the sum of its proper divisors (177480360).

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

74620440 is an equidigital number, since it uses as much as digits as its factorization.

74620440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 885 (or 863 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 27.

The square root of 74620440 is about 8638.3123351729. The cubic root of 74620440 is about 421.0037218298.

The spelling of 74620440 in words is "seventy-four million, six hundred twenty thousand, four hundred forty".