200920140 has 36 divisors (see below), whose sum is σ = 609458304. Its totient is φ = 53578656.

The previous prime is 200920133. The next prime is 200920169. The reversal of 200920140 is 41029002.

It is a tau number, because it is divible by the number of its divisors (36).

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

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, 557932 + ... + 558291.

Almost surely, 2^200920140 is an apocalyptic number.

200920140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

200920140 is an abundant number, since it is smaller than the sum of its proper divisors (408538164).

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

200920140 is a wasteful number, since it uses less digits than its factorization.

200920140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1116238 (or 1116233 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 200920140 is about 14174.6301539053. The cubic root of 200920140 is about 585.6990110178.

Adding to 200920140 its reverse (41029002), we get a palindrome (241949142).

The spelling of 200920140 in words is "two hundred million, nine hundred twenty thousand, one hundred forty".