2158029388 has 6 divisors (see below), whose sum is σ = 3776551436. Its totient is φ = 1079014692.

The previous prime is 2158029359. The next prime is 2158029397. The reversal of 2158029388 is 8839208512.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 269753670 + ... + 269753677.

Almost surely, 2^2158029388 is an apocalyptic number.

It is an amenable number.

2158029388 is a deficient number, since it is larger than the sum of its proper divisors (1618522048).

2158029388 is a wasteful number, since it uses less digits than its factorization.

2158029388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539507351 (or 539507349 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 46.

The square root of 2158029388 is about 46454.5949072855. The cubic root of 2158029388 is about 1292.2675874811.

The spelling of 2158029388 in words is "two billion, one hundred fifty-eight million, twenty-nine thousand, three hundred eighty-eight".