20340716 has 48 divisors (see below), whose sum is σ = 42336000. Its totient is φ = 8447040.

The previous prime is 20340709. The next prime is 20340739. The reversal of 20340716 is 61704302.

It is a junction number, because it is equal to n+sod(n) for n = 20340691 and 20340700.

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, 23825 + ... + 24663.

It is an arithmetic number, because the mean of its divisors is an integer number (882000).

Almost surely, 2^20340716 is an apocalyptic number.

It is an amenable number.

20340716 is an abundant number, since it is smaller than the sum of its proper divisors (21995284).

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

20340716 is a wasteful number, since it uses less digits than its factorization.

20340716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902 (or 900 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 20340716 is about 4510.0682921659. The cubic root of 20340716 is about 272.9744997135.

The spelling of 20340716 in words is "twenty million, three hundred forty thousand, seven hundred sixteen".