75400072 has 32 divisors (see below), whose sum is σ = 160937280. Its totient is φ = 32781760.

The previous prime is 75400069. The next prime is 75400097. The reversal of 75400072 is 27000457.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16603 + ... + 20650.

It is an arithmetic number, because the mean of its divisors is an integer number (5029290).

Almost surely, 2^75400072 is an apocalyptic number.

It is an amenable number.

75400072 is an abundant number, since it is smaller than the sum of its proper divisors (85537208).

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

75400072 is a wasteful number, since it uses less digits than its factorization.

75400072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37293 (or 37289 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 25.

The square root of 75400072 is about 8683.3214843169. The cubic root of 75400072 is about 422.4648561504.

The spelling of 75400072 in words is "seventy-five million, four hundred thousand, seventy-two".