2358863640 has 256 divisors, whose sum is σ = 9122227200. Its totient is φ = 531007488.

The previous prime is 2358863629. The next prime is 2358863641. The reversal of 2358863640 is 463688532.

It is a happy number.

2358863640 is a `hidden beast` number, since 2 + 3 + 5 + 8 + 8 + 636 + 4 + 0 = 666.

It is a super-2 number, since 2×2358863640² = 11128475344228099200, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2358863641) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 504192 + ... + 508848.

It is an arithmetic number, because the mean of its divisors is an integer number (35633700).

Almost surely, 2^2358863640 is an apocalyptic number.

2358863640 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 2358863640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4561113600).

2358863640 is an abundant number, since it is smaller than the sum of its proper divisors (6763363560).

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

2358863640 is a wasteful number, since it uses less digits than its factorization.

2358863640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4751 (or 4741 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 45.

The square root of 2358863640 is about 48568.1339975091. The cubic root of 2358863640 is about 1331.1723207997.

The spelling of 2358863640 in words is "two billion, three hundred fifty-eight million, eight hundred sixty-three thousand, six hundred forty".