75452428 has 6 divisors (see below), whose sum is σ = 132041756. Its totient is φ = 37726212.

The previous prime is 75452417. The next prime is 75452431. The reversal of 75452428 is 82425457.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9431550 + ... + 9431557.

Almost surely, 2^75452428 is an apocalyptic number.

It is an amenable number.

75452428 is a deficient number, since it is larger than the sum of its proper divisors (56589328).

75452428 is a wasteful number, since it uses less digits than its factorization.

75452428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18863111 (or 18863109 counting only the distinct ones).

The product of its digits is 89600, while the sum is 37.

The square root of 75452428 is about 8686.3357061537. The cubic root of 75452428 is about 422.5626166779.

The spelling of 75452428 in words is "seventy-five million, four hundred fifty-two thousand, four hundred twenty-eight".