206463340 has 48 divisors (see below), whose sum is σ = 442512000. Its totient is φ = 80900352.

The previous prime is 206463319. The next prime is 206463347. The reversal of 206463340 is 43364602.

It is a super-2 number, since 2×206463340² = 85254221527911200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 206463299 and 206463308.

It is not an unprimeable number, because it can be changed into a prime (206463347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 234982 + ... + 235858.

It is an arithmetic number, because the mean of its divisors is an integer number (9219000).

Almost surely, 2^206463340 is an apocalyptic number.

206463340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206463340 is an abundant number, since it is smaller than the sum of its proper divisors (236048660).

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

206463340 is a wasteful number, since it uses less digits than its factorization.

206463340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1114 (or 1112 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 28.

The square root of 206463340 is about 14368.8322420439. The cubic root of 206463340 is about 591.0365194360.

The spelling of 206463340 in words is "two hundred six million, four hundred sixty-three thousand, three hundred forty".