200642040 has 48 divisors (see below), whose sum is σ = 652087800. Its totient is φ = 53504448.

The previous prime is 200642027. The next prime is 200642053. The reversal of 200642040 is 40246002.

200642040 is a `hidden beast` number, since 20 + 0 + 642 + 0 + 4 + 0 = 666.

200642040 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (200642027) and next prime (200642053).

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, 278310 + ... + 279029.

Almost surely, 2^200642040 is an apocalyptic number.

200642040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200642040 is an abundant number, since it is smaller than the sum of its proper divisors (451445760).

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

200642040 is a wasteful number, since it uses less digits than its factorization.

200642040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557356 (or 557349 counting only the distinct ones).

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

The square root of 200642040 is about 14164.8169772857. The cubic root of 200642040 is about 585.4286579921.

Adding to 200642040 its reverse (40246002), we get a palindrome (240888042).

The spelling of 200642040 in words is "two hundred million, six hundred forty-two thousand, forty".