2353638690 has 48 divisors (see below), whose sum is σ = 6590191608. Its totient is φ = 579356928.

The previous prime is 2353638689. The next prime is 2353638713. The reversal of 2353638690 is 968363532.

2353638690 is a `hidden beast` number, since 2 + 3 + 5 + 3 + 638 + 6 + 9 + 0 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 2049101289 + 304537401 = 45267^2 + 17451^2 .

It is a super-2 number, since 2×2353638690² = 11079230166129832200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1004659 + ... + 1006998.

Almost surely, 2^2353638690 is an apocalyptic number.

2353638690 is an abundant number, since it is smaller than the sum of its proper divisors (4236552918).

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

2353638690 is a wasteful number, since it uses less digits than its factorization.

2353638690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2011683 (or 2011680 counting only the distinct ones).

The product of its (nonzero) digits is 699840, while the sum is 45.

The square root of 2353638690 is about 48514.3142793959. The cubic root of 2353638690 is about 1330.1887327095.

It can be divided in two parts, 23536 and 38690, that added together give a palindrome (62226).

The spelling of 2353638690 in words is "two billion, three hundred fifty-three million, six hundred thirty-eight thousand, six hundred ninety".