401853420 has 192 divisors, whose sum is σ = 1342656000. Its totient is φ = 99470592.

The previous prime is 401853379. The next prime is 401853433. The reversal of 401853420 is 24358104.

It is a super-2 number, since 2×401853420² = 322972342331392800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 543411 + ... + 544149.

It is an arithmetic number, because the mean of its divisors is an integer number (6993000).

Almost surely, 2^401853420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 401853420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (671328000).

401853420 is an abundant number, since it is smaller than the sum of its proper divisors (940802580).

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

401853420 is a wasteful number, since it uses less digits than its factorization.

401853420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 829 (or 821 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 401853420 is about 20046.2819495287. The cubic root of 401853420 is about 737.9425561740.

The spelling of 401853420 in words is "four hundred one million, eight hundred fifty-three thousand, four hundred twenty".