2190011138 has 8 divisors (see below), whose sum is σ = 3754304832. Its totient is φ = 938576196.

The previous prime is 2190011123. The next prime is 2190011141. The reversal of 2190011138 is 8311100912.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2190011138² = 9592297569128110088, which contains 22 as substring.

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 in 3 ways as a sum of consecutive naturals, for example, 78214670 + ... + 78214697.

It is an arithmetic number, because the mean of its divisors is an integer number (469288104).

Almost surely, 2^2190011138 is an apocalyptic number.

2190011138 is a deficient number, since it is larger than the sum of its proper divisors (1564293694).

2190011138 is a wasteful number, since it uses less digits than its factorization.

2190011138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156429376.

The product of its (nonzero) digits is 432, while the sum is 26.

The square root of 2190011138 is about 46797.5548292857. The cubic root of 2190011138 is about 1298.6200619595.

The spelling of 2190011138 in words is "two billion, one hundred ninety million, eleven thousand, one hundred thirty-eight".