396972452 has 6 divisors (see below), whose sum is σ = 694701798. Its totient is φ = 198486224.

The previous prime is 396972449. The next prime is 396972497. The reversal of 396972452 is 254279693.

It can be written as a sum of positive squares in only one way, i.e., 395771236 + 1201216 = 19894^2 + 1096^2 .

It is a junction number, because it is equal to n+sod(n) for n = 396972397 and 396972406.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49621553 + ... + 49621560.

It is an arithmetic number, because the mean of its divisors is an integer number (115783633).

Almost surely, 2^396972452 is an apocalyptic number.

It is an amenable number.

396972452 is a deficient number, since it is larger than the sum of its proper divisors (297729346).

396972452 is a wasteful number, since it uses less digits than its factorization.

396972452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99243117 (or 99243115 counting only the distinct ones).

The product of its digits is 816480, while the sum is 47.

The square root of 396972452 is about 19924.1675359348. The cubic root of 396972452 is about 734.9426595402.

The spelling of 396972452 in words is "three hundred ninety-six million, nine hundred seventy-two thousand, four hundred fifty-two".