20716494 has 32 divisors (see below), whose sum is σ = 43155456. Its totient is φ = 6622560.

The previous prime is 20716483. The next prime is 20716541. The reversal of 20716494 is 49461702.

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, 23184 + ... + 24060.

It is an arithmetic number, because the mean of its divisors is an integer number (1348608).

Almost surely, 2^20716494 is an apocalyptic number.

20716494 is an abundant number, since it is smaller than the sum of its proper divisors (22438962).

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

20716494 is a wasteful number, since it uses less digits than its factorization.

20716494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1040.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 20716494 is about 4551.5375424136. The cubic root of 20716494 is about 274.6452461406.

The spelling of 20716494 in words is "twenty million, seven hundred sixteen thousand, four hundred ninety-four".