402246089 has 16 divisors (see below), whose sum is σ = 464171136. Its totient is φ = 341452800.

The previous prime is 402246073. The next prime is 402246101. The reversal of 402246089 is 980642204.

It is a cyclic number.

It is not a de Polignac number, because 402246089 - 2⁴ = 402246073 is a prime.

It is a super-2 number, since 2×402246089² = 323603832231591842, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (402246029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 627209 + ... + 627849.

It is an arithmetic number, because the mean of its divisors is an integer number (29010696).

Almost surely, 2^402246089 is an apocalyptic number.

It is an amenable number.

402246089 is a deficient number, since it is larger than the sum of its proper divisors (61925047).

402246089 is a wasteful number, since it uses less digits than its factorization.

402246089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1376.

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 402246089 is about 20056.0736187321. The cubic root of 402246089 is about 738.1828368509.

The spelling of 402246089 in words is "four hundred two million, two hundred forty-six thousand, eighty-nine".