401085438 has 16 divisors (see below), whose sum is σ = 863876496. Its totient is φ = 123410880.

The previous prime is 401085401. The next prime is 401085511. The reversal of 401085438 is 834580104.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 401085399 and 401085408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2570983 + ... + 2571138.

It is an arithmetic number, because the mean of its divisors is an integer number (53992281).

Almost surely, 2^401085438 is an apocalyptic number.

401085438 is an abundant number, since it is smaller than the sum of its proper divisors (462791058).

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

401085438 is a wasteful number, since it uses less digits than its factorization.

401085438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5142139.

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 401085438 is about 20027.1175659404. The cubic root of 401085438 is about 737.4721624272.

The spelling of 401085438 in words is "four hundred one million, eighty-five thousand, four hundred thirty-eight".