722476512 has 36 divisors (see below), whose sum is σ = 2054543400. Its totient is φ = 240825408.

The previous prime is 722476511. The next prime is 722476543. The reversal of 722476512 is 215674227.

It is a happy number.

722476512 is a `hidden beast` number, since 72 + 2 + 4 + 76 + 512 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×722476512² = 1043944620783372288, which contains 22 as substring.

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 (722476511) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1254012 + ... + 1254587.

It is an arithmetic number, because the mean of its divisors is an integer number (57070650).

Almost surely, 2^722476512 is an apocalyptic number.

722476512 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

722476512 is an abundant number, since it is smaller than the sum of its proper divisors (1332066888).

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

722476512 is a wasteful number, since it uses less digits than its factorization.

722476512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2508615 (or 2508604 counting only the distinct ones).

The product of its digits is 47040, while the sum is 36.

The square root of 722476512 is about 26878.9231927174. The cubic root of 722476512 is about 897.3073893461.

The spelling of 722476512 in words is "seven hundred twenty-two million, four hundred seventy-six thousand, five hundred twelve".