401343420 has 48 divisors (see below), whose sum is σ = 1131328800. Its totient is φ = 106304256.

The previous prime is 401343377. The next prime is 401343443. The reversal of 401343420 is 24343104.

It is a super-2 number, since 2×401343420² = 322153081554592800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13507 + ... + 31386.

It is an arithmetic number, because the mean of its divisors is an integer number (23569350).

Almost surely, 2^401343420 is an apocalyptic number.

It is an amenable number.

401343420 is an abundant number, since it is smaller than the sum of its proper divisors (729985380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

401343420 is a wasteful number, since it uses less digits than its factorization.

401343420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45054 (or 45052 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 401343420 is about 20033.5573476105. The cubic root of 401343420 is about 737.6302449276.

Adding to 401343420 its reverse (24343104), we get a palindrome (425686524).

The spelling of 401343420 in words is "four hundred one million, three hundred forty-three thousand, four hundred twenty".