75350644 has 6 divisors (see below), whose sum is σ = 131863634. Its totient is φ = 37675320.

The previous prime is 75350629. The next prime is 75350651. The reversal of 75350644 is 44605357.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 66422500 + 8928144 = 8150^2 + 2988^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9418827 + ... + 9418834.

Almost surely, 2^75350644 is an apocalyptic number.

It is an amenable number.

75350644 is a deficient number, since it is larger than the sum of its proper divisors (56512990).

75350644 is a wasteful number, since it uses less digits than its factorization.

75350644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18837665 (or 18837663 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 34.

The square root of 75350644 is about 8680.4748718028. The cubic root of 75350644 is about 422.3725213247.

The spelling of 75350644 in words is "seventy-five million, three hundred fifty thousand, six hundred forty-four".