20340894 has 32 divisors (see below), whose sum is σ = 46861056. Its totient is φ = 5765760.

The previous prime is 20340871. The next prime is 20340907. The reversal of 20340894 is 49804302.

It is a happy number.

It is a congruent number.

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, 3654 + ... + 7350.

It is an arithmetic number, because the mean of its divisors is an integer number (1464408).

Almost surely, 2^20340894 is an apocalyptic number.

20340894 is an abundant number, since it is smaller than the sum of its proper divisors (26520162).

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

20340894 is a wasteful number, since it uses less digits than its factorization.

20340894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3840.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 20340894 is about 4510.0880257485. The cubic root of 20340894 is about 272.9752959706.

The spelling of 20340894 in words is "twenty million, three hundred forty thousand, eight hundred ninety-four".