712257280 has 72 divisors (see below), whose sum is σ = 1949828832. Its totient is φ = 244199424.

The previous prime is 712257241. The next prime is 712257283. The reversal of 712257280 is 82752217.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (712257283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30787 + ... + 48706.

It is an arithmetic number, because the mean of its divisors is an integer number (27080956).

Almost surely, 2^712257280 is an apocalyptic number.

712257280 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

712257280 is an abundant number, since it is smaller than the sum of its proper divisors (1237571552).

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

712257280 is an equidigital number, since it uses as much as digits as its factorization.

712257280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79521 (or 79507 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 34.

The square root of 712257280 is about 26688.1486806410. The cubic root of 712257280 is about 893.0565613722.

The spelling of 712257280 in words is "seven hundred twelve million, two hundred fifty-seven thousand, two hundred eighty".