20094540 has 48 divisors (see below), whose sum is σ = 56609280. Its totient is φ = 5325760.

The previous prime is 20094523. The next prime is 20094553. The reversal of 20094540 is 4549002.

It is a self number, because there is not a number n which added to its sum of digits gives 20094540.

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, 9805 + ... + 11675.

It is an arithmetic number, because the mean of its divisors is an integer number (1179360).

Almost surely, 2^20094540 is an apocalyptic number.

20094540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20094540 is an abundant number, since it is smaller than the sum of its proper divisors (36514740).

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

20094540 is a wasteful number, since it uses less digits than its factorization.

20094540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2062 (or 2060 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 20094540 is about 4482.6933867933. The cubic root of 20094540 is about 271.8687912441.

The spelling of 20094540 in words is "twenty million, ninety-four thousand, five hundred forty".