722144040 has 64 divisors (see below), whose sum is σ = 2168467200. Its totient is φ = 192390912.

The previous prime is 722143999. The next prime is 722144081. The reversal of 722144040 is 40441227.

It is an interprime number because it is at equal distance from previous prime (722143999) and next prime (722144081).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 722144040.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 168646 + ... + 172874.

It is an arithmetic number, because the mean of its divisors is an integer number (33882300).

Almost surely, 2^722144040 is an apocalyptic number.

It is an amenable number.

722144040 is an abundant number, since it is smaller than the sum of its proper divisors (1446323160).

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

722144040 is a wasteful number, since it uses less digits than its factorization.

722144040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5666 (or 5662 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 24.

The square root of 722144040 is about 26872.7378582831. The cubic root of 722144040 is about 897.1697261136.

Adding to 722144040 its reverse (40441227), we get a palindrome (762585267).

The spelling of 722144040 in words is "seven hundred twenty-two million, one hundred forty-four thousand, forty".