20045692 has 12 divisors (see below), whose sum is σ = 35131936. Its totient is φ = 10008000.

The previous prime is 20045687. The next prime is 20045717. The reversal of 20045692 is 29654002.

It is a self number, because there is not a number n which added to its sum of digits gives 20045692.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 333 + ... + 6340.

Almost surely, 2^20045692 is an apocalyptic number.

It is an amenable number.

20045692 is a deficient number, since it is larger than the sum of its proper divisors (15086244).

20045692 is a wasteful number, since it uses less digits than its factorization.

20045692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7428 (or 7426 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 20045692 is about 4477.2415614974. The cubic root of 20045692 is about 271.6483163905.

Adding to 20045692 its reverse (29654002), we get a palindrome (49699694).

The spelling of 20045692 in words is "twenty million, forty-five thousand, six hundred ninety-two".