75730490 has 64 divisors (see below), whose sum is σ = 159563520. Its totient is φ = 25597440.

The previous prime is 75730471. The next prime is 75730493. The reversal of 75730490 is 9403757.

It is a self number, because there is not a number n which added to its sum of digits gives 75730490.

It is not an unprimeable number, because it can be changed into a prime (75730493) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 93206 + ... + 94014.

It is an arithmetic number, because the mean of its divisors is an integer number (2493180).

Almost surely, 2^75730490 is an apocalyptic number.

75730490 is an abundant number, since it is smaller than the sum of its proper divisors (83833030).

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

75730490 is a wasteful number, since it uses less digits than its factorization.

75730490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 887.

The product of its (nonzero) digits is 26460, while the sum is 35.

The square root of 75730490 is about 8702.3267003716. The cubic root of 75730490 is about 423.0810650410.

The spelling of 75730490 in words is "seventy-five million, seven hundred thirty thousand, four hundred ninety".