406997152 has 12 divisors (see below), whose sum is σ = 801275706. Its totient is φ = 203498560.

The previous prime is 406997147. The next prime is 406997183. The reversal of 406997152 is 251799604.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 312440976 + 94556176 = 17676^2 + 9724^2 .

It is a super-2 number, since 2×406997152² = 331293363472222208, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 406997099 and 406997108.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6359299 + ... + 6359362.

Almost surely, 2^406997152 is an apocalyptic number.

It is an amenable number.

406997152 is a deficient number, since it is larger than the sum of its proper divisors (394278554).

406997152 is a wasteful number, since it uses less digits than its factorization.

406997152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12718671 (or 12718663 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 43.

The square root of 406997152 is about 20174.1704166491. The cubic root of 406997152 is about 741.0777769595.

The spelling of 406997152 in words is "four hundred six million, nine hundred ninety-seven thousand, one hundred fifty-two".