401798403 has 6 divisors (see below), whose sum is σ = 580375484. Its totient is φ = 267865596.

The previous prime is 401798389. The next prime is 401798473. The reversal of 401798403 is 304897104.

It is a happy number.

It is not a de Polignac number, because 401798403 - 2⁸ = 401798147 is a prime.

It is a super-2 number, since 2×401798403² = 322883913306700818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (401798473) by changing a digit.

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 in 5 ways as a sum of consecutive naturals, for example, 22322125 + ... + 22322142.

Almost surely, 2^401798403 is an apocalyptic number.

401798403 is a deficient number, since it is larger than the sum of its proper divisors (178577081).

401798403 is a wasteful number, since it uses less digits than its factorization.

401798403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44644273 (or 44644270 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 401798403 is about 20044.9096530765. The cubic root of 401798403 is about 737.9088778587.

The spelling of 401798403 in words is "four hundred one million, seven hundred ninety-eight thousand, four hundred three".