724020790 has 16 divisors (see below), whose sum is σ = 1309085568. Its totient is φ = 288308736.

The previous prime is 724020767. The next prime is 724020793. The reversal of 724020790 is 97020427.

It is a happy number.

It is a super-2 number, since 2×724020790² = 1048412208704448200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (724020793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 160107 + ... + 164566.

It is an arithmetic number, because the mean of its divisors is an integer number (81817848).

Almost surely, 2^724020790 is an apocalyptic number.

724020790 is a deficient number, since it is larger than the sum of its proper divisors (585064778).

724020790 is a wasteful number, since it uses less digits than its factorization.

724020790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324903.

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 724020790 is about 26907.6344185066. The cubic root of 724020790 is about 897.9462594513.

The spelling of 724020790 in words is "seven hundred twenty-four million, twenty thousand, seven hundred ninety".