206939464 has 32 divisors (see below), whose sum is σ = 414771840. Its totient is φ = 96553600.

The previous prime is 206939429. The next prime is 206939471. The reversal of 206939464 is 464939602.

It is a self number, because there is not a number n which added to its sum of digits gives 206939464.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6172 + ... + 21259.

It is an arithmetic number, because the mean of its divisors is an integer number (12961620).

Almost surely, 2^206939464 is an apocalyptic number.

It is an amenable number.

206939464 is an abundant number, since it is smaller than the sum of its proper divisors (207832376).

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

206939464 is a wasteful number, since it uses less digits than its factorization.

206939464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27501 (or 27497 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 43.

The square root of 206939464 is about 14385.3906446784. The cubic root of 206939464 is about 591.4904993559.

The spelling of 206939464 in words is "two hundred six million, nine hundred thirty-nine thousand, four hundred sixty-four".