20929962 has 16 divisors (see below), whose sum is σ = 42245280. Its totient is φ = 6912432.

The previous prime is 20929957. The next prime is 20929969. The reversal of 20929962 is 26992902.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 20929962.

It is not an unprimeable number, because it can be changed into a prime (20929969) 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, 15348 + ... + 16655.

It is an arithmetic number, because the mean of its divisors is an integer number (2640330).

Almost surely, 2^20929962 is an apocalyptic number.

20929962 is an abundant number, since it is smaller than the sum of its proper divisors (21315318).

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

20929962 is a wasteful number, since it uses less digits than its factorization.

20929962 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32117.

The product of its (nonzero) digits is 34992, while the sum is 39.

The square root of 20929962 is about 4574.9275404098. The cubic root of 20929962 is about 275.5853624851.

The spelling of 20929962 in words is "twenty million, nine hundred twenty-nine thousand, nine hundred sixty-two".