2634390 has 64 divisors (see below), whose sum is σ = 7672320. Its totient is φ = 637920.

The previous prime is 2634377. The next prime is 2634403. The reversal of 2634390 is 934362.

It is an interprime number because it is at equal distance from previous prime (2634377) and next prime (2634403).

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 2527 + ... + 3413.

It is an arithmetic number, because the mean of its divisors is an integer number (119880).

2^2634390 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2634390, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3836160).

2634390 is an abundant number, since it is smaller than the sum of its proper divisors (5037930).

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

2634390 is a wasteful number, since it uses less digits than its factorization.

2634390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 914 (or 908 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 2634390 is about 1623.0804046627. The cubic root of 2634390 is about 138.1104975116.

The spelling of 2634390 in words is "two million, six hundred thirty-four thousand, three hundred ninety".