74990370 has 96 divisors (see below), whose sum is σ = 222832512. Its totient is φ = 15814656.

The previous prime is 74990369. The next prime is 74990381. The reversal of 74990370 is 7309947.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 34434 + ... + 36546.

It is an arithmetic number, because the mean of its divisors is an integer number (2321172).

Almost surely, 2^74990370 is an apocalyptic number.

74990370 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 74990370, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111416256).

74990370 is an abundant number, since it is smaller than the sum of its proper divisors (147842142).

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

74990370 is a wasteful number, since it uses less digits than its factorization.

74990370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2156 (or 2143 counting only the distinct ones).

The product of its (nonzero) digits is 47628, while the sum is 39.

The square root of 74990370 is about 8659.6980316868. The cubic root of 74990370 is about 421.6982824193.

It can be divided in two parts, 749 and 90370, that added together give a palindrome (91119).

The spelling of 74990370 in words is "seventy-four million, nine hundred ninety thousand, three hundred seventy".