402653190 has 64 divisors (see below), whose sum is σ = 991486656. Its totient is φ = 104612352.

The previous prime is 402653189. The next prime is 402653201. The reversal of 402653190 is 91356204.

It is a super-2 number, since 2×402653190² = 324259182834352200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 248824 + ... + 250436.

It is an arithmetic number, because the mean of its divisors is an integer number (15491979).

Almost surely, 2^402653190 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 402653190, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (495743328).

402653190 is an abundant number, since it is smaller than the sum of its proper divisors (588833466).

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

402653190 is a wasteful number, since it uses less digits than its factorization.

402653190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1833.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 402653190 is about 20066.2201223848. The cubic root of 402653190 is about 738.4317836652.

The spelling of 402653190 in words is "four hundred two million, six hundred fifty-three thousand, one hundred ninety".