401621460 has 48 divisors (see below), whose sum is σ = 1127540736. Its totient is φ = 106813312.

The previous prime is 401621453. The next prime is 401621471. The reversal of 401621460 is 64126104.

It is a super-2 number, since 2×401621460² = 322599594265063200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 401621460.

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, 14242 + ... + 31718.

It is an arithmetic number, because the mean of its divisors is an integer number (23490432).

Almost surely, 2^401621460 is an apocalyptic number.

It is an amenable number.

401621460 is an abundant number, since it is smaller than the sum of its proper divisors (725919276).

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

401621460 is a wasteful number, since it uses less digits than its factorization.

401621460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17872 (or 17870 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 401621460 is about 20040.4955028562. The cubic root of 401621460 is about 737.8005424508.

Adding to 401621460 its reverse (64126104), we get a palindrome (465747564).

The spelling of 401621460 in words is "four hundred one million, six hundred twenty-one thousand, four hundred sixty".