1864494 has 12 divisors (see below), whose sum is σ = 4039776. Its totient is φ = 621492.

The previous prime is 1864483. The next prime is 1864507. The reversal of 1864494 is 4944681.

It is a happy number.

1864494 is a `hidden beast` number, since 1 + 8 + 644 + 9 + 4 = 666.

It is a super-3 number, since 3×1864494³ = 19444833335525597352, which 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 5 ways as a sum of consecutive naturals, for example, 51774 + ... + 51809.

It is an arithmetic number, because the mean of its divisors is an integer number (336648).

2^1864494 is an apocalyptic number.

1864494 is an abundant number, since it is smaller than the sum of its proper divisors (2175282).

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

1864494 is a wasteful number, since it uses less digits than its factorization.

1864494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103591 (or 103588 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 1864494 is about 1365.4647560446. The cubic root of 1864494 is about 123.0798608874.

The spelling of 1864494 in words is "one million, eight hundred sixty-four thousand, four hundred ninety-four".