20401914 has 16 divisors (see below), whose sum is σ = 43942752. Its totient is φ = 6277488.

The previous prime is 20401867. The next prime is 20401919. The reversal of 20401914 is 41910402.

It is not an unprimeable number, because it can be changed into a prime (20401919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130704 + ... + 130859.

It is an arithmetic number, because the mean of its divisors is an integer number (2746422).

Almost surely, 2^20401914 is an apocalyptic number.

20401914 is an abundant number, since it is smaller than the sum of its proper divisors (23540838).

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

20401914 is a wasteful number, since it uses less digits than its factorization.

20401914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261581.

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 20401914 is about 4516.8477946462. The cubic root of 20401914 is about 273.2479867718.

The spelling of 20401914 in words is "twenty million, four hundred one thousand, nine hundred fourteen".