401834390 has 16 divisors (see below), whose sum is σ = 723773232. Its totient is φ = 160629024.

The previous prime is 401834387. The next prime is 401834417. The reversal of 401834390 is 93438104.

It is a super-2 number, since 2×401834390² = 322941753973344200, which contains 22 as substring.

It is a Curzon number.

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, 4097 + ... + 28643.

It is an arithmetic number, because the mean of its divisors is an integer number (45235827).

Almost surely, 2^401834390 is an apocalyptic number.

401834390 is a deficient number, since it is larger than the sum of its proper divisors (321938842).

401834390 is a wasteful number, since it uses less digits than its factorization.

401834390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26191.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 401834390 is about 20045.8072922993. The cubic root of 401834390 is about 737.9309074253.

The spelling of 401834390 in words is "four hundred one million, eight hundred thirty-four thousand, three hundred ninety".