20246040 has 48 divisors (see below), whose sum is σ = 65800800. Its totient is φ = 5398848.

The previous prime is 20246029. The next prime is 20246063. The reversal of 20246040 is 4064202.

20246040 is a `hidden beast` number, since 202 + 460 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27760 + ... + 28479.

It is an arithmetic number, because the mean of its divisors is an integer number (1370850).

Almost surely, 2^20246040 is an apocalyptic number.

20246040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20246040 is an abundant number, since it is smaller than the sum of its proper divisors (45554760).

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

20246040 is a wasteful number, since it uses less digits than its factorization.

20246040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56256 (or 56249 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 20246040 is about 4499.5599784868. The cubic root of 20246040 is about 272.5503203652.

It can be divided in two parts, 202460 and 40, that added together give a square (202500 = 450²).

The spelling of 20246040 in words is "twenty million, two hundred forty-six thousand, forty".