1890942298 has 16 divisors (see below), whose sum is σ = 3242704320. Its totient is φ = 810131616.

The previous prime is 1890942259. The next prime is 1890942307. The reversal of 1890942298 is 8922490981.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23758 + ... + 65926.

It is an arithmetic number, because the mean of its divisors is an integer number (202669020).

Almost surely, 2^1890942298 is an apocalyptic number.

1890942298 is a deficient number, since it is larger than the sum of its proper divisors (1351762022).

1890942298 is a wasteful number, since it uses less digits than its factorization.

1890942298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45381.

The product of its (nonzero) digits is 746496, while the sum is 52.

The square root of 1890942298 is about 43484.9663447035. The cubic root of 1890942298 is about 1236.5910308779.

The spelling of 1890942298 in words is "one billion, eight hundred ninety million, nine hundred forty-two thousand, two hundred ninety-eight".