749642500 has 30 divisors (see below), whose sum is σ = 1639323686. Its totient is φ = 299856000.

The previous prime is 749642497. The next prime is 749642563. The reversal of 749642500 is 5246947.

It can be written as a sum of positive squares in 5 ways, for example, as 224041024 + 525601476 = 14968^2 + 22926^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 749642500.

It is an unprimeable number.

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 9 ways as a sum of consecutive naturals, for example, 147429 + ... + 152428.

Almost surely, 2^749642500 is an apocalyptic number.

It is an amenable number.

749642500 is an abundant number, since it is smaller than the sum of its proper divisors (889681186).

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

749642500 is a wasteful number, since it uses less digits than its factorization.

749642500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299881 (or 299864 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 749642500 is about 27379.6000701252. The cubic root of 749642500 is about 908.4159133368.

The spelling of 749642500 in words is "seven hundred forty-nine million, six hundred forty-two thousand, five hundred".