75409074 has 24 divisors (see below), whose sum is σ = 175955052. Its totient is φ = 23202720.

The previous prime is 75409063. The next prime is 75409097. The reversal of 75409074 is 47090457.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 71825625 + 3583449 = 8475^2 + 1893^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 160897 + ... + 161364.

Almost surely, 2^75409074 is an apocalyptic number.

75409074 is an abundant number, since it is smaller than the sum of its proper divisors (100545978).

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

75409074 is a wasteful number, since it uses less digits than its factorization.

75409074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322282 (or 322279 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 75409074 is about 8683.8398188820. The cubic root of 75409074 is about 422.4816681471.

The spelling of 75409074 in words is "seventy-five million, four hundred nine thousand, seventy-four".