2090495340 has 72 divisors (see below), whose sum is σ = 6383246688. Its totient is φ = 553766400.

The previous prime is 2090495291. The next prime is 2090495357. The reversal of 2090495340 is 435940902.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 2090495295 and 2090495304.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11277 + ... + 65636.

It is an arithmetic number, because the mean of its divisors is an integer number (88656204).

Almost surely, 2^2090495340 is an apocalyptic number.

2090495340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2090495340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3191623344).

2090495340 is an abundant number, since it is smaller than the sum of its proper divisors (4292751348).

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

2090495340 is a wasteful number, since it uses less digits than its factorization.

2090495340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77079 (or 77074 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 2090495340 is about 45721.9349984228. The cubic root of 2090495340 is about 1278.6442636089.

The spelling of 2090495340 in words is "two billion, ninety million, four hundred ninety-five thousand, three hundred forty".