401421675 has 12 divisors (see below), whose sum is σ = 663683960. Its totient is φ = 214091520.

The previous prime is 401421667. The next prime is 401421677. The reversal of 401421675 is 576124104.

It is not a de Polignac number, because 401421675 - 2³ = 401421667 is a prime.

It is a super-2 number, since 2×401421675² = 322278722319611250, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401421677) 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 11 ways as a sum of consecutive naturals, for example, 2676070 + ... + 2676219.

Almost surely, 2^401421675 is an apocalyptic number.

401421675 is a deficient number, since it is larger than the sum of its proper divisors (262262285).

401421675 is a wasteful number, since it uses less digits than its factorization.

401421675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5352302 (or 5352297 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 401421675 is about 20035.5103503754. The cubic root of 401421675 is about 737.6781835098.

Adding to 401421675 its reverse (576124104), we get a palindrome (977545779).

The spelling of 401421675 in words is "four hundred one million, four hundred twenty-one thousand, six hundred seventy-five".