401288704 has 20 divisors (see below), whose sum is σ = 801794664. Its totient is φ = 200644096.

The previous prime is 401288687. The next prime is 401288711. The reversal of 401288704 is 407882104.

It is a super-2 number, since 2×401288704² = 322065247915999232, 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 401288704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 391372 + ... + 392395.

Almost surely, 2^401288704 is an apocalyptic number.

It is an amenable number.

401288704 is a deficient number, since it is larger than the sum of its proper divisors (400505960).

401288704 is an frugal number, since it uses more digits than its factorization.

401288704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 783785 (or 783769 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 34.

The square root of 401288704 is about 20032.1916923736. The cubic root of 401288704 is about 737.5967225054.

The spelling of 401288704 in words is "four hundred one million, two hundred eighty-eight thousand, seven hundred four".