2038190661 has 32 divisors (see below), whose sum is σ = 3254872320. Its totient is φ = 1253092032.

The previous prime is 2038190657. The next prime is 2038190663. The reversal of 2038190661 is 1660918302.

It is not a de Polignac number, because 2038190661 - 2² = 2038190657 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2038190663) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 505891 + ... + 509903.

It is an arithmetic number, because the mean of its divisors is an integer number (101714760).

Almost surely, 2^2038190661 is an apocalyptic number.

It is an amenable number.

2038190661 is a deficient number, since it is larger than the sum of its proper divisors (1216681659).

2038190661 is a wasteful number, since it uses less digits than its factorization.

2038190661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5482 (or 5476 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 2038190661 is about 45146.3249999377. The cubic root of 2038190661 is about 1267.8900756626.

The spelling of 2038190661 in words is "two billion, thirty-eight million, one hundred ninety thousand, six hundred sixty-one".