724260672 has 42 divisors (see below), whose sum is σ = 2075964098. Its totient is φ = 241420032.

The previous prime is 724260661. The next prime is 724260683. The reversal of 724260672 is 276062427.

724260672 is a `hidden beast` number, since 7 + 2 + 42 + 606 + 7 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (724260661) and next prime (724260683).

It can be written as a sum of positive squares in only one way, i.e., 569108736 + 155151936 = 23856^2 + 12456^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 628123 + ... + 629274.

Almost surely, 2^724260672 is an apocalyptic number.

724260672 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

724260672 is an abundant number, since it is smaller than the sum of its proper divisors (1351703426).

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

724260672 is a wasteful number, since it uses less digits than its factorization.

724260672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1257415 (or 1257402 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 36.

The square root of 724260672 is about 26912.0915575137. The cubic root of 724260672 is about 898.0454174512.

The spelling of 724260672 in words is "seven hundred twenty-four million, two hundred sixty thousand, six hundred seventy-two".