20770492 has 12 divisors (see below), whose sum is σ = 36610840. Its totient is φ = 10310256.

The previous prime is 20770489. The next prime is 20770499. The reversal of 20770492 is 29407702.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20770499) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18123 + ... + 19234.

Almost surely, 2^20770492 is an apocalyptic number.

It is an amenable number.

20770492 is a deficient number, since it is larger than the sum of its proper divisors (15840348).

20770492 is a wasteful number, since it uses less digits than its factorization.

20770492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37500 (or 37498 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 31.

The square root of 20770492 is about 4557.4655237314. The cubic root of 20770492 is about 274.8836620853.

The spelling of 20770492 in words is "twenty million, seven hundred seventy thousand, four hundred ninety-two".