1072472724 has 42 divisors (see below), whose sum is σ = 2813961290. Its totient is φ = 357489936.

The previous prime is 1072472707. The next prime is 1072472729. The reversal of 1072472724 is 4272742701.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1067328900 + 5143824 = 32670^2 + 2268^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1072472729) 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 13 ways as a sum of consecutive naturals, for example, 180979 + ... + 186810.

Almost surely, 2^1072472724 is an apocalyptic number.

It is an amenable number.

1072472724 is an abundant number, since it is smaller than the sum of its proper divisors (1741488566).

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

1072472724 is an equidigital number, since it uses as much as digits as its factorization.

1072472724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367811 (or 367794 counting only the distinct ones).

The product of its (nonzero) digits is 43904, while the sum is 36.

The square root of 1072472724 is about 32748.6293453634. The cubic root of 1072472724 is about 1023.5964049246.

The spelling of 1072472724 in words is "one billion, seventy-two million, four hundred seventy-two thousand, seven hundred twenty-four".