20253982 has 8 divisors (see below), whose sum is σ = 34721136. Its totient is φ = 8680272.

The previous prime is 20253979. The next prime is 20254009. The reversal of 20253982 is 28935202.

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

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, 723343 + ... + 723370.

It is an arithmetic number, because the mean of its divisors is an integer number (4340142).

Almost surely, 2^20253982 is an apocalyptic number.

20253982 is a deficient number, since it is larger than the sum of its proper divisors (14467154).

20253982 is a wasteful number, since it uses less digits than its factorization.

20253982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1446722.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 20253982 is about 4500.4424226958. The cubic root of 20253982 is about 272.5859538630.

The spelling of 20253982 in words is "twenty million, two hundred fifty-three thousand, nine hundred eighty-two".