712744540 has 12 divisors (see below), whose sum is σ = 1496763576. Its totient is φ = 285097808.

The previous prime is 712744471. The next prime is 712744547. The reversal of 712744540 is 45447217.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 712744496 and 712744505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (712744547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17818594 + ... + 17818633.

It is an arithmetic number, because the mean of its divisors is an integer number (124730298).

Almost surely, 2^712744540 is an apocalyptic number.

It is an amenable number.

712744540 is an abundant number, since it is smaller than the sum of its proper divisors (784019036).

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

712744540 is a wasteful number, since it uses less digits than its factorization.

712744540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35637236 (or 35637234 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 34.

The square root of 712744540 is about 26697.2758909968. The cubic root of 712744540 is about 893.2601636192.

The spelling of 712744540 in words is "seven hundred twelve million, seven hundred forty-four thousand, five hundred forty".