401653768 has 32 divisors (see below), whose sum is σ = 805752000. Its totient is φ = 187133760.

The previous prime is 401653751. The next prime is 401653783. The reversal of 401653768 is 867356104.

It is a happy number.

It is a super-2 number, since 2×401653768² = 322651498697195648, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 401653768.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12388 + ... + 30931.

It is an arithmetic number, because the mean of its divisors is an integer number (25179750).

Almost surely, 2^401653768 is an apocalyptic number.

It is an amenable number.

401653768 is an abundant number, since it is smaller than the sum of its proper divisors (404098232).

401653768 is a wasteful number, since it uses less digits than its factorization.

401653768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43405 (or 43401 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 401653768 is about 20041.3015545398. The cubic root of 401653768 is about 737.8203257734.

The spelling of 401653768 in words is "four hundred one million, six hundred fifty-three thousand, seven hundred sixty-eight".