74570454 has 72 divisors (see below), whose sum is σ = 191266920. Its totient is φ = 20930112.

The previous prime is 74570453. The next prime is 74570491. The reversal of 74570454 is 45407547.

It is a super-2 number, since 2×74570454² = 11121505219532232, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74570453) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 51322 + ... + 52754.

It is an arithmetic number, because the mean of its divisors is an integer number (2656485).

Almost surely, 2^74570454 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74570454, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95633460).

74570454 is an abundant number, since it is smaller than the sum of its proper divisors (116696466).

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

74570454 is a wasteful number, since it uses less digits than its factorization.

74570454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1514 (or 1504 counting only the distinct ones).

The product of its (nonzero) digits is 78400, while the sum is 36.

The square root of 74570454 is about 8635.4185770002. The cubic root of 74570454 is about 420.9096948993.

The spelling of 74570454 in words is "seventy-four million, five hundred seventy thousand, four hundred fifty-four".