401330889 has 8 divisors (see below), whose sum is σ = 594564320. Its totient is φ = 267553908.

The previous prime is 401330879. The next prime is 401330903. The reversal of 401330889 is 988033104.

It is a de Polignac number, because none of the positive numbers 2^k-401330889 is a prime.

It is a super-2 number, since 2×401330889² = 322132964931060642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (401330819) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7432027 + ... + 7432080.

It is an arithmetic number, because the mean of its divisors is an integer number (74320540).

Almost surely, 2^401330889 is an apocalyptic number.

It is an amenable number.

401330889 is a deficient number, since it is larger than the sum of its proper divisors (193233431).

401330889 is a wasteful number, since it uses less digits than its factorization.

401330889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14864116 (or 14864110 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 401330889 is about 20033.2445949227. The cubic root of 401330889 is about 737.6225679272.

The spelling of 401330889 in words is "four hundred one million, three hundred thirty thousand, eight hundred eighty-nine".