74574654 has 128 divisors (see below), whose sum is σ = 198180864. Its totient is φ = 18144000.

The previous prime is 74574629. The next prime is 74574659. The reversal of 74574654 is 45647547.

It is a super-2 number, since 2×74574654² = 11122758038439432, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74574659) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 587139 + ... + 587265.

It is an arithmetic number, because the mean of its divisors is an integer number (1548288).

Almost surely, 2^74574654 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74574654, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99090432).

74574654 is an abundant number, since it is smaller than the sum of its proper divisors (123606210).

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

74574654 is a wasteful number, since it uses less digits than its factorization.

74574654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222.

The product of its digits is 470400, while the sum is 42.

The square root of 74574654 is about 8635.6617580820. The cubic root of 74574654 is about 420.9175969903.

The spelling of 74574654 in words is "seventy-four million, five hundred seventy-four thousand, six hundred fifty-four".