407536722 has 48 divisors (see below), whose sum is σ = 910771992. Its totient is φ = 131604480.

The previous prime is 407536693. The next prime is 407536729. The reversal of 407536722 is 227635704.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 389312361 + 18224361 = 19731^2 + 4269^2 .

It is not an unprimeable number, because it can be changed into a prime (407536729) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 169972 + ... + 172352.

Almost surely, 2^407536722 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 407536722, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (455385996).

407536722 is an abundant number, since it is smaller than the sum of its proper divisors (503235270).

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

407536722 is a wasteful number, since it uses less digits than its factorization.

407536722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2683 (or 2680 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 36.

The square root of 407536722 is about 20187.5387801485. The cubic root of 407536722 is about 741.4051230355.

The spelling of 407536722 in words is "four hundred seven million, five hundred thirty-six thousand, seven hundred twenty-two".