74389536 has 192 divisors, whose sum is σ = 241315200. Its totient is φ = 22146048.

The previous prime is 74389531. The next prime is 74389537. The reversal of 74389536 is 63598347.

It is a junction number, because it is equal to n+sod(n) for n = 74389491 and 74389500.

It is not an unprimeable number, because it can be changed into a prime (74389531) 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, 415495 + ... + 415673.

It is an arithmetic number, because the mean of its divisors is an integer number (1256850).

Almost surely, 2^74389536 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 74389536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120657600).

74389536 is an abundant number, since it is smaller than the sum of its proper divisors (166925664).

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

74389536 is a wasteful number, since it uses less digits than its factorization.

74389536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248 (or 234 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The square root of 74389536 is about 8624.9368693342. The cubic root of 74389536 is about 420.5690246439.

The spelling of 74389536 in words is "seventy-four million, three hundred eighty-nine thousand, five hundred thirty-six".