749294220 has 48 divisors (see below), whose sum is σ = 2099230560. Its totient is φ = 199696896.

The previous prime is 749294213. The next prime is 749294233. The reversal of 749294220 is 22492947.

It is a super-2 number, since 2×749294220² = 1122883656250816800, which contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 175066 + ... + 179294.

It is an arithmetic number, because the mean of its divisors is an integer number (43733970).

Almost surely, 2^749294220 is an apocalyptic number.

It is an amenable number.

749294220 is an abundant number, since it is smaller than the sum of its proper divisors (1349936340).

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

749294220 is a wasteful number, since it uses less digits than its factorization.

749294220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7194 (or 7192 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 749294220 is about 27373.2391214485. The cubic root of 749294220 is about 908.2752097776.

The spelling of 749294220 in words is "seven hundred forty-nine million, two hundred ninety-four thousand, two hundred twenty".