2158886430 has 24 divisors (see below), whose sum is σ = 5613104952. Its totient is φ = 575703024.

The previous prime is 2158886383. The next prime is 2158886437. The reversal of 2158886430 is 346888512.

2158886430 is a `hidden beast` number, since 2 + 1 + 588 + 8 + 64 + 3 + 0 = 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 (2158886437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11993724 + ... + 11993903.

It is an arithmetic number, because the mean of its divisors is an integer number (233879373).

Almost surely, 2^2158886430 is an apocalyptic number.

2158886430 is an abundant number, since it is smaller than the sum of its proper divisors (3454218522).

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

2158886430 is a wasteful number, since it uses less digits than its factorization.

2158886430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23987640 (or 23987637 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 45.

The square root of 2158886430 is about 46463.8185042943. The cubic root of 2158886430 is about 1292.4386356639.

The spelling of 2158886430 in words is "two billion, one hundred fifty-eight million, eight hundred eighty-six thousand, four hundred thirty".