74771400 has 96 divisors (see below), whose sum is σ = 252885600. Its totient is φ = 18124800.

The previous prime is 74771399. The next prime is 74771429. The reversal of 74771400 is 417747.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 936 + ... + 12264.

It is an arithmetic number, because the mean of its divisors is an integer number (2634225).

Almost surely, 2^74771400 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 74771400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126442800).

74771400 is an abundant number, since it is smaller than the sum of its proper divisors (178114200).

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

74771400 is a wasteful number, since it uses less digits than its factorization.

74771400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11359 (or 11350 counting only the distinct ones).

The product of its (nonzero) digits is 5488, while the sum is 30.

The square root of 74771400 is about 8647.0457382854. The cubic root of 74771400 is about 421.2874327990.

The spelling of 74771400 in words is "seventy-four million, seven hundred seventy-one thousand, four hundred".