20535704 has 24 divisors (see below), whose sum is σ = 44791740. Its totient is φ = 8800848.

The previous prime is 20535689. The next prime is 20535707. The reversal of 20535704 is 40753502.

20535704 = T₂₁₇ + T₂₁₈ + ... + T₅₁₀.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20535707) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25802 + ... + 26585.

Almost surely, 2^20535704 is an apocalyptic number.

It is an amenable number.

20535704 is an abundant number, since it is smaller than the sum of its proper divisors (24256036).

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

20535704 is a wasteful number, since it uses less digits than its factorization.

20535704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52407 (or 52396 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 26.

The square root of 20535704 is about 4531.6337009957. The cubic root of 20535704 is about 273.8439802980.

The spelling of 20535704 in words is "twenty million, five hundred thirty-five thousand, seven hundred four".