401422431 has 8 divisors (see below), whose sum is σ = 548284464. Its totient is φ = 261087680.

The previous prime is 401422429. The next prime is 401422433. The reversal of 401422431 is 134224104.

It is an interprime number because it is at equal distance from previous prime (401422429) and next prime (401422433).

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

It is a cyclic number.

It is not a de Polignac number, because 401422431 - 2¹ = 401422429 is a prime.

It is a super-2 number, since 2×401422431² = 322279936219899522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 401422398 and 401422407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401422433) 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, 1631676 + ... + 1631921.

It is an arithmetic number, because the mean of its divisors is an integer number (68535558).

Almost surely, 2^401422431 is an apocalyptic number.

401422431 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

401422431 is a deficient number, since it is larger than the sum of its proper divisors (146862033).

401422431 is a wasteful number, since it uses less digits than its factorization.

401422431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3263641.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 401422431 is about 20035.5292168687. The cubic root of 401422431 is about 737.6786466008.

Adding to 401422431 its reverse (134224104), we get a palindrome (535646535).

The spelling of 401422431 in words is "four hundred one million, four hundred twenty-two thousand, four hundred thirty-one".