20342835 has 24 divisors (see below), whose sum is σ = 35418240. Its totient is φ = 10801152.

The previous prime is 20342807. The next prime is 20342873. The reversal of 20342835 is 53824302.

20342835 is a `hidden beast` number, since 203 + 428 + 35 = 666.

It is not a de Polignac number, because 20342835 - 2¹⁸ = 20080691 is a prime.

It is a super-3 number, since 3×20342835³ (a number of 23 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20342799 and 20342808.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10686 + ... + 12444.

It is an arithmetic number, because the mean of its divisors is an integer number (1475760).

Almost surely, 2^20342835 is an apocalyptic number.

20342835 is a deficient number, since it is larger than the sum of its proper divisors (15075405).

20342835 is a wasteful number, since it uses less digits than its factorization.

20342835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2027 (or 2024 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 20342835 is about 4510.3032048855. The cubic root of 20342835 is about 272.9839784503.

The spelling of 20342835 in words is "twenty million, three hundred forty-two thousand, eight hundred thirty-five".