2158466190 has 32 divisors (see below), whose sum is σ = 5251287456. Its totient is φ = 567705600.

The previous prime is 2158466113. The next prime is 2158466239. The reversal of 2158466190 is 916648512.

It is a super-2 number, since 2×2158466190² = 9317952586746232200, which contains 22 as substring.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 490611 + ... + 494990.

It is an arithmetic number, because the mean of its divisors is an integer number (164102733).

Almost surely, 2^2158466190 is an apocalyptic number.

2158466190 is an abundant number, since it is smaller than the sum of its proper divisors (3092821266).

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

2158466190 is a wasteful number, since it uses less digits than its factorization.

2158466190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 985684.

The product of its (nonzero) digits is 103680, while the sum is 42.

The square root of 2158466190 is about 46459.2960557949. The cubic root of 2158466190 is about 1292.3547699496.

The spelling of 2158466190 in words is "two billion, one hundred fifty-eight million, four hundred sixty-six thousand, one hundred ninety".