396000722 has 8 divisors (see below), whose sum is σ = 639693516. Its totient is φ = 182769552.

The previous prime is 396000623. The next prime is 396000739. The reversal of 396000722 is 227000693.

It can be written as a sum of positive squares in 2 ways, for example, as 384905161 + 11095561 = 19619^2 + 3331^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7615373 + ... + 7615424.

Almost surely, 2^396000722 is an apocalyptic number.

396000722 is a deficient number, since it is larger than the sum of its proper divisors (243692794).

396000722 is a wasteful number, since it uses less digits than its factorization.

396000722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15230812.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 396000722 is about 19899.7668830567. The cubic root of 396000722 is about 734.3424924968.

Subtracting from 396000722 its sum of digits (29), we obtain a palindrome (396000693).

The spelling of 396000722 in words is "three hundred ninety-six million, seven hundred twenty-two", and thus it is an aban number.