1881920094 has 32 divisors (see below), whose sum is σ = 4194996480. Its totient is φ = 559331712.

The previous prime is 1881920081. The next prime is 1881920129. The reversal of 1881920094 is 4900291881.

1881920094 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×1881920094³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 483594 + ... + 487469.

It is an arithmetic number, because the mean of its divisors is an integer number (131093640).

Almost surely, 2^1881920094 is an apocalyptic number.

1881920094 is an abundant number, since it is smaller than the sum of its proper divisors (2313076386).

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

1881920094 is a wasteful number, since it uses less digits than its factorization.

1881920094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 971104.

The product of its (nonzero) digits is 41472, while the sum is 42.

The square root of 1881920094 is about 43381.1029596989. The cubic root of 1881920094 is about 1234.6211897473.

The spelling of 1881920094 in words is "one billion, eight hundred eighty-one million, nine hundred twenty thousand, ninety-four".