75424356 has 72 divisors (see below), whose sum is σ = 219011520. Its totient is φ = 21439296.

The previous prime is 75424343. The next prime is 75424369. The reversal of 75424356 is 65342457.

It is an interprime number because it is at equal distance from previous prime (75424343) and next prime (75424369).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 75424356.

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, 57055 + ... + 58361.

Almost surely, 2^75424356 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 75424356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109505760).

75424356 is an abundant number, since it is smaller than the sum of its proper divisors (143587164).

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

75424356 is a wasteful number, since it uses less digits than its factorization.

75424356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1553 (or 1548 counting only the distinct ones).

The product of its digits is 100800, while the sum is 36.

The square root of 75424356 is about 8684.7196845955. The cubic root of 75424356 is about 422.5102055119.

The spelling of 75424356 in words is "seventy-five million, four hundred twenty-four thousand, three hundred fifty-six".