74774500 has 96 divisors (see below), whose sum is σ = 182407680. Its totient is φ = 26611200.

The previous prime is 74774461. The next prime is 74774501. The reversal of 74774500 is 547747.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (74774501) 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, 161269 + ... + 161731.

It is an arithmetic number, because the mean of its divisors is an integer number (1900080).

Almost surely, 2^74774500 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 74774500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91203840).

74774500 is an abundant number, since it is smaller than the sum of its proper divisors (107633180).

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

74774500 is a wasteful number, since it uses less digits than its factorization.

74774500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518 (or 506 counting only the distinct ones).

The product of its (nonzero) digits is 27440, while the sum is 34.

The square root of 74774500 is about 8647.2249883995. The cubic root of 74774500 is about 421.2932548691.

The spelling of 74774500 in words is "seventy-four million, seven hundred seventy-four thousand, five hundred".