724312026 has 12 divisors (see below), whose sum is σ = 1569342762. Its totient is φ = 241437336.

The previous prime is 724312007. The next prime is 724312031. The reversal of 724312026 is 620213427.

It can be written as a sum of positive squares in only one way, i.e., 718186401 + 6125625 = 26799^2 + 2475^2 .

It is a super-2 number, since 2×724312026² = 1049255822016449352, which contains 22 as substring.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 20119761 + ... + 20119796.

Almost surely, 2^724312026 is an apocalyptic number.

724312026 is an abundant number, since it is smaller than the sum of its proper divisors (845030736).

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

724312026 is a wasteful number, since it uses less digits than its factorization.

724312026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40239565 (or 40239562 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 724312026 is about 26913.0456470463. The cubic root of 724312026 is about 898.0666423757.

The spelling of 724312026 in words is "seven hundred twenty-four million, three hundred twelve thousand, twenty-six".