206031490 has 32 divisors (see below), whose sum is σ = 433699200. Its totient is φ = 68995584.

The previous prime is 206031479. The next prime is 206031491. The reversal of 206031490 is 94130602.

It is not an unprimeable number, because it can be changed into a prime (206031491) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31215 + ... + 37234.

It is an arithmetic number, because the mean of its divisors is an integer number (13553100).

Almost surely, 2^206031490 is an apocalyptic number.

206031490 is an abundant number, since it is smaller than the sum of its proper divisors (227667710).

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

206031490 is a wasteful number, since it uses less digits than its factorization.

206031490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68506.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 206031490 is about 14353.7970586183. The cubic root of 206031490 is about 590.6241503678.

The spelling of 206031490 in words is "two hundred six million, thirty-one thousand, four hundred ninety".