1894490 has 48 divisors (see below), whose sum is σ = 3952800. Its totient is φ = 651456.

The previous prime is 1894489. The next prime is 1894577. The reversal of 1894490 is 944981.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a nialpdrome in base 12.

It is a zygodrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 1894490.

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 23 ways as a sum of consecutive naturals, for example, 32081 + ... + 32139.

It is an arithmetic number, because the mean of its divisors is an integer number (82350).

2^1894490 is an apocalyptic number.

1894490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1894490 is an abundant number, since it is smaller than the sum of its proper divisors (2058310).

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

1894490 is a wasteful number, since it uses less digits than its factorization.

1894490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111 (or 98 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 1894490 is about 1376.4047369869. The cubic root of 1894490 is about 123.7363893476.

The spelling of 1894490 in words is "one million, eight hundred ninety-four thousand, four hundred ninety".