208018476040 has 32 divisors (see below), whose sum is σ = 468246430080. Its totient is φ = 83170971072.

The previous prime is 208018476019. The next prime is 208018476053. The reversal of 208018476040 is 40674810802.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 208018475984 and 208018476002.

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, 1045482 + ... + 1228441.

It is an arithmetic number, because the mean of its divisors is an integer number (14632700940).

Almost surely, 2^208018476040 is an apocalyptic number.

208018476040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

208018476040 is an abundant number, since it is smaller than the sum of its proper divisors (260227954040).

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

208018476040 is a wasteful number, since it uses less digits than its factorization.

208018476040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2276221 (or 2276217 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 40.

The spelling of 208018476040 in words is "two hundred eight billion, eighteen million, four hundred seventy-six thousand, forty".