401399332 has 6 divisors (see below), whose sum is σ = 702448838. Its totient is φ = 200699664.

The previous prime is 401399329. The next prime is 401399407. The reversal of 401399332 is 233993104.

It can be written as a sum of positive squares in only one way, i.e., 207187236 + 194212096 = 14394^2 + 13936^2 .

It is a super-2 number, since 2×401399332² = 322242847460092448, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50174913 + ... + 50174920.

Almost surely, 2^401399332 is an apocalyptic number.

It is an amenable number.

401399332 is a deficient number, since it is larger than the sum of its proper divisors (301049506).

401399332 is a wasteful number, since it uses less digits than its factorization.

401399332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100349837 (or 100349835 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 34.

The square root of 401399332 is about 20034.9527576184. The cubic root of 401399332 is about 737.6644969465.

The spelling of 401399332 in words is "four hundred one million, three hundred ninety-nine thousand, three hundred thirty-two".