75040772 has 6 divisors (see below), whose sum is σ = 131321358. Its totient is φ = 37520384.

The previous prime is 75040759. The next prime is 75040787. The reversal of 75040772 is 27704057.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 38365636 + 36675136 = 6194^2 + 6056^2 .

It is a super-2 number, since 2×75040772² = 11262234924711968, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9380093 + ... + 9380100.

It is an arithmetic number, because the mean of its divisors is an integer number (21886893).

Almost surely, 2^75040772 is an apocalyptic number.

It is an amenable number.

75040772 is a deficient number, since it is larger than the sum of its proper divisors (56280586).

75040772 is a wasteful number, since it uses less digits than its factorization.

75040772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18760197 (or 18760195 counting only the distinct ones).

The product of its (nonzero) digits is 13720, while the sum is 32.

The square root of 75040772 is about 8662.6076905283. The cubic root of 75040772 is about 421.7927375554.

The spelling of 75040772 in words is "seventy-five million, forty thousand, seven hundred seventy-two".