401435320 has 64 divisors (see below), whose sum is σ = 1061151840. Its totient is φ = 134745600.

The previous prime is 401435317. The next prime is 401435323. The reversal of 401435320 is 23534104.

It is an interprime number because it is at equal distance from previous prime (401435317) and next prime (401435323).

It is a super-2 number, since 2×401435320² = 322300632287004800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 401435291 and 401435300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401435323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29371 + ... + 40810.

Almost surely, 2^401435320 is an apocalyptic number.

401435320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

401435320 is an abundant number, since it is smaller than the sum of its proper divisors (659716520).

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

401435320 is a wasteful number, since it uses less digits than its factorization.

401435320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70216 (or 70212 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 401435320 is about 20035.8508678818. The cubic root of 401435320 is about 737.6865417238.

Adding to 401435320 its reverse (23534104), we get a palindrome (424969424).

The spelling of 401435320 in words is "four hundred one million, four hundred thirty-five thousand, three hundred twenty".