20447962 has 8 divisors (see below), whose sum is σ = 31385376. Its totient is φ = 9986172.

The previous prime is 20447953. The next prime is 20447969. The reversal of 20447962 is 26974402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (20447969) 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, 118798 + ... + 118969.

It is an arithmetic number, because the mean of its divisors is an integer number (3923172).

Almost surely, 2^20447962 is an apocalyptic number.

20447962 is a deficient number, since it is larger than the sum of its proper divisors (10937414).

20447962 is a wasteful number, since it uses less digits than its factorization.

20447962 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237812.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 20447962 is about 4521.9422818077. The cubic root of 20447962 is about 273.4534097975.

The spelling of 20447962 in words is "twenty million, four hundred forty-seven thousand, nine hundred sixty-two".