206752140 has 72 divisors (see below), whose sum is σ = 716745120. Its totient is φ = 47257344.

The previous prime is 206752123. The next prime is 206752153. The reversal of 206752140 is 41257602.

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, 80785 + ... + 83304.

Almost surely, 2^206752140 is an apocalyptic number.

206752140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206752140 is an abundant number, since it is smaller than the sum of its proper divisors (509992980).

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

206752140 is a wasteful number, since it uses less digits than its factorization.

206752140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164111 (or 164106 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 206752140 is about 14378.8782594471. The cubic root of 206752140 is about 591.3119707924.

It can be divided in two parts, 2067521 and 40, that added together give a triangular number (2067561 = T₂₀₃₃).

The spelling of 206752140 in words is "two hundred six million, seven hundred fifty-two thousand, one hundred forty".