74570136 has 64 divisors (see below), whose sum is σ = 203040000. Its totient is φ = 22732416.

The previous prime is 74570131. The next prime is 74570137. The reversal of 74570136 is 63107547.

It is a junction number, because it is equal to n+sod(n) for n = 74570097 and 74570106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74570131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10405 + ... + 16043.

It is an arithmetic number, because the mean of its divisors is an integer number (3172500).

Almost surely, 2^74570136 is an apocalyptic number.

74570136 is a gapful number since it is divisible by the number (76) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74570136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101520000).

74570136 is an abundant number, since it is smaller than the sum of its proper divisors (128469864).

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

74570136 is a wasteful number, since it uses less digits than its factorization.

74570136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5696 (or 5692 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 33.

The square root of 74570136 is about 8635.4001644394. The cubic root of 74570136 is about 420.9090965861.

The spelling of 74570136 in words is "seventy-four million, five hundred seventy thousand, one hundred thirty-six".