401818683 has 16 divisors (see below), whose sum is σ = 632047616. Its totient is φ = 222203520.

The previous prime is 401818673. The next prime is 401818721. The reversal of 401818683 is 386818104.

It is not a de Polignac number, because 401818683 - 2⁶ = 401818619 is a prime.

It is a super-2 number, since 2×401818683² = 322916508015708978, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (401818603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 307966 + ... + 309267.

It is an arithmetic number, because the mean of its divisors is an integer number (39502976).

Almost surely, 2^401818683 is an apocalyptic number.

401818683 is a deficient number, since it is larger than the sum of its proper divisors (230228933).

401818683 is a wasteful number, since it uses less digits than its factorization.

401818683 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617274.

The product of its (nonzero) digits is 36864, while the sum is 39.

The square root of 401818683 is about 20045.4155107845. The cubic root of 401818683 is about 737.9212924926.

The spelling of 401818683 in words is "four hundred one million, eight hundred eighteen thousand, six hundred eighty-three".