401823090 has 48 divisors (see below), whose sum is σ = 1048215168. Its totient is φ = 106796448.

The previous prime is 401823017. The next prime is 401823091. The reversal of 401823090 is 90328104.

It is a super-2 number, since 2×401823090² = 322923591314296200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401823091) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20359 + ... + 34901.

It is an arithmetic number, because the mean of its divisors is an integer number (21837816).

Almost surely, 2^401823090 is an apocalyptic number.

401823090 is an abundant number, since it is smaller than the sum of its proper divisors (646392078).

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

401823090 is a wasteful number, since it uses less digits than its factorization.

401823090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14863 (or 14860 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 401823090 is about 20045.5254358672. The cubic root of 401823090 is about 737.9239902328.

The spelling of 401823090 in words is "four hundred one million, eight hundred twenty-three thousand, ninety".