1894838490 has 48 divisors (see below), whose sum is σ = 4937239008. Its totient is φ = 504197088.

The previous prime is 1894838489. The next prime is 1894838527. The reversal of 1894838490 is 948384981.

1894838490 is a `hidden beast` number, since 1 + 89 + 48 + 38 + 490 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19489 + ... + 64571.

It is an arithmetic number, because the mean of its divisors is an integer number (102859146).

Almost surely, 2^1894838490 is an apocalyptic number.

1894838490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1894838490 is an abundant number, since it is smaller than the sum of its proper divisors (3042400518).

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

1894838490 is a wasteful number, since it uses less digits than its factorization.

1894838490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45563 (or 45560 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 54.

The square root of 1894838490 is about 43529.7425905553. The cubic root of 1894838490 is about 1237.4397595408.

The spelling of 1894838490 in words is "one billion, eight hundred ninety-four million, eight hundred thirty-eight thousand, four hundred ninety".