401818382 has 16 divisors (see below), whose sum is σ = 689393760. Its totient is φ = 172067328.

The previous prime is 401818381. The next prime is 401818393. The reversal of 401818382 is 283818104.

It is a super-2 number, since 2×401818382² = 322916024226195848, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401818381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7094 + ... + 29222.

It is an arithmetic number, because the mean of its divisors is an integer number (43087110).

Almost surely, 2^401818382 is an apocalyptic number.

401818382 is a deficient number, since it is larger than the sum of its proper divisors (287575378).

401818382 is a wasteful number, since it uses less digits than its factorization.

401818382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23435.

The product of its (nonzero) digits is 12288, while the sum is 35.

The square root of 401818382 is about 20045.4080028320. The cubic root of 401818382 is about 737.9211082351.

The spelling of 401818382 in words is "four hundred one million, eight hundred eighteen thousand, three hundred eighty-two".