2358778140 has 144 divisors (see below), whose sum is σ = 7264857600. Its totient is φ = 619432320.

The previous prime is 2358778099. The next prime is 2358778141. The reversal of 2358778140 is 418778532.

2358778140 is a `hidden beast` number, since 23 + 587 + 7 + 8 + 1 + 40 = 666.

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 (2358778141) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3937561 + ... + 3938159.

It is an arithmetic number, because the mean of its divisors is an integer number (50450400).

Almost surely, 2^2358778140 is an apocalyptic number.

2358778140 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 2358778140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3632428800).

2358778140 is an abundant number, since it is smaller than the sum of its proper divisors (4906079460).

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

2358778140 is a wasteful number, since it uses less digits than its factorization.

2358778140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 912 (or 907 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 45.

The square root of 2358778140 is about 48567.2537827701. The cubic root of 2358778140 is about 1331.1562372632.

The spelling of 2358778140 in words is "two billion, three hundred fifty-eight million, seven hundred seventy-eight thousand, one hundred forty".