20094840 has 48 divisors (see below), whose sum is σ = 65309400. Its totient is φ = 5358528.

The previous prime is 20094839. The next prime is 20094853. The reversal of 20094840 is 4849002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27550 + ... + 28269.

Almost surely, 2^20094840 is an apocalyptic number.

20094840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20094840 is an abundant number, since it is smaller than the sum of its proper divisors (45214560).

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

20094840 is a wasteful number, since it uses less digits than its factorization.

20094840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55836 (or 55829 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 20094840 is about 4482.7268486938. The cubic root of 20094840 is about 271.8701441860.

The spelling of 20094840 in words is "twenty million, ninety-four thousand, eight hundred forty".