756424990 has 16 divisors (see below), whose sum is σ = 1394774640. Its totient is φ = 295190080.

The previous prime is 756424961. The next prime is 756424993. The reversal of 756424990 is 99424657.

It is a self number, because there is not a number n which added to its sum of digits gives 756424990.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (756424993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 922060 + ... + 922879.

It is an arithmetic number, because the mean of its divisors is an integer number (87173415).

Almost surely, 2^756424990 is an apocalyptic number.

756424990 is a deficient number, since it is larger than the sum of its proper divisors (638349650).

756424990 is a wasteful number, since it uses less digits than its factorization.

756424990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1844987.

The product of its (nonzero) digits is 544320, while the sum is 46.

The square root of 756424990 is about 27503.1814523338. The cubic root of 756424990 is about 911.1473632820.

The spelling of 756424990 in words is "seven hundred fifty-six million, four hundred twenty-four thousand, nine hundred ninety".