401423901 has 8 divisors (see below), whose sum is σ = 536082624. Its totient is φ = 267190560.

The previous prime is 401423881. The next prime is 401423917. The reversal of 401423901 is 109324104.

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

It is not a de Polignac number, because 401423901 - 2¹⁸ = 401161757 is a prime.

It is a super-2 number, since 2×401423901² = 322282296588115602, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401423401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104136 + ... + 107921.

It is an arithmetic number, because the mean of its divisors is an integer number (67010328).

Almost surely, 2^401423901 is an apocalyptic number.

It is an amenable number.

401423901 is a deficient number, since it is larger than the sum of its proper divisors (134658723).

401423901 is a wasteful number, since it uses less digits than its factorization.

401423901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212691.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 401423901 is about 20035.5659016660. The cubic root of 401423901 is about 737.6795470540.

The spelling of 401423901 in words is "four hundred one million, four hundred twenty-three thousand, nine hundred one".