208625540 has 12 divisors (see below), whose sum is σ = 438113676. Its totient is φ = 83450208.

The previous prime is 208625533. The next prime is 208625591. The reversal of 208625540 is 45526802.

It can be written as a sum of positive squares in 2 ways, for example, as 51724864 + 156900676 = 7192^2 + 12526^2 .

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 208625497 and 208625506.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5215619 + ... + 5215658.

It is an arithmetic number, because the mean of its divisors is an integer number (36509473).

Almost surely, 2^208625540 is an apocalyptic number.

208625540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

208625540 is an abundant number, since it is smaller than the sum of its proper divisors (229488136).

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

208625540 is a wasteful number, since it uses less digits than its factorization.

208625540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10431286 (or 10431284 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 32.

The square root of 208625540 is about 14443.8755187103. The cubic root of 208625540 is about 593.0925807183.

The spelling of 208625540 in words is "two hundred eight million, six hundred twenty-five thousand, five hundred forty".