2690235828 has 180 divisors, whose sum is σ = 8382586212. Its totient is φ = 749710080.

The previous prime is 2690235811. The next prime is 2690235829. The reversal of 2690235828 is 8285320962.

It is a happy number.

2690235828 is a `hidden beast` number, since 2 + 69 + 0 + 2 + 3 + 582 + 8 = 666.

2690235828 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 929762064 + 1760473764 = 30492^2 + 41958^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2690235829) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 648850 + ... + 652982.

Almost surely, 2^2690235828 is an apocalyptic number.

2690235828 is a gapful number since it is divisible by the number (28) 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 2690235828, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4191293106).

2690235828 is an abundant number, since it is smaller than the sum of its proper divisors (5692350384).

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

2690235828 is a wasteful number, since it uses less digits than its factorization.

2690235828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4204 (or 4186 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The square root of 2690235828 is about 51867.4833397573. The cubic root of 2690235828 is about 1390.7960569568.

The spelling of 2690235828 in words is "two billion, six hundred ninety million, two hundred thirty-five thousand, eight hundred twenty-eight".