20852494 has 8 divisors (see below), whose sum is σ = 33684840. Its totient is φ = 9624216.

The previous prime is 20852473. The next prime is 20852501. The reversal of 20852494 is 49425802.

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, 400984 + ... + 401035.

It is an arithmetic number, because the mean of its divisors is an integer number (4210605).

Almost surely, 2^20852494 is an apocalyptic number.

20852494 is a deficient number, since it is larger than the sum of its proper divisors (12832346).

20852494 is a wasteful number, since it uses less digits than its factorization.

20852494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 802034.

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 20852494 is about 4566.4531093618. The cubic root of 20852494 is about 275.2449343965.

It can be divided in two parts, 20 and 852494, that multiplied together give a triangular number (17049880 = T₅₈₃₉).

The spelling of 20852494 in words is "twenty million, eight hundred fifty-two thousand, four hundred ninety-four".