74607988 has 96 divisors (see below), whose sum is σ = 169344000. Its totient is φ = 28562688.

The previous prime is 74607983. The next prime is 74607989. The reversal of 74607988 is 88970647.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74607983) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 838248 + ... + 838336.

It is an arithmetic number, because the mean of its divisors is an integer number (1764000).

Almost surely, 2^74607988 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 74607988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84672000).

74607988 is an abundant number, since it is smaller than the sum of its proper divisors (94736012).

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

74607988 is a wasteful number, since it uses less digits than its factorization.

74607988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174 (or 158 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 49.

The square root of 74607988 is about 8637.5915624669. The cubic root of 74607988 is about 420.9803027328.

The spelling of 74607988 in words is "seventy-four million, six hundred seven thousand, nine hundred eighty-eight".