401427768 has 32 divisors (see below), whose sum is σ = 1146936960. Its totient is φ = 114693600.

The previous prime is 401427751. The next prime is 401427781. The reversal of 401427768 is 867724104.

It is a super-3 number, since 3×401427768³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1194558 + ... + 1194893.

It is an arithmetic number, because the mean of its divisors is an integer number (35841780).

Almost surely, 2^401427768 is an apocalyptic number.

It is an amenable number.

401427768 is an abundant number, since it is smaller than the sum of its proper divisors (745509192).

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

401427768 is a wasteful number, since it uses less digits than its factorization.

401427768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2389467 (or 2389463 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 39.

The square root of 401427768 is about 20035.6624048221. The cubic root of 401427768 is about 737.6819157866.

The spelling of 401427768 in words is "four hundred one million, four hundred twenty-seven thousand, seven hundred sixty-eight".