401611774 has 16 divisors (see below), whose sum is σ = 640171728. Its totient is φ = 188307072.

The previous prime is 401611753. The next prime is 401611781. The reversal of 401611774 is 477116104.

It is a super-2 number, since 2×401611774² = 322584034030854152, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11904 + ... + 30739.

It is an arithmetic number, because the mean of its divisors is an integer number (40010733).

Almost surely, 2^401611774 is an apocalyptic number.

401611774 is a deficient number, since it is larger than the sum of its proper divisors (238559954).

401611774 is a wasteful number, since it uses less digits than its factorization.

401611774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42939.

The product of its (nonzero) digits is 4704, while the sum is 31.

The square root of 401611774 is about 20040.2538407077. The cubic root of 401611774 is about 737.7946111662.

Adding to 401611774 its reverse (477116104), we get a palindrome (878727878).

The spelling of 401611774 in words is "four hundred one million, six hundred eleven thousand, seven hundred seventy-four".