2085874640 has 40 divisors (see below), whose sum is σ = 4851975168. Its totient is φ = 833951360.

The previous prime is 2085874627. The next prime is 2085874657. The reversal of 2085874640 is 464785802.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 2085874591 and 2085874600.

It is a congruent number.

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, 208145 + ... + 217935.

Almost surely, 2^2085874640 is an apocalyptic number.

2085874640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2085874640 is an abundant number, since it is smaller than the sum of its proper divisors (2766100528).

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

2085874640 is a wasteful number, since it uses less digits than its factorization.

2085874640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12467 (or 12461 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 44.

The square root of 2085874640 is about 45671.3765940988. The cubic root of 2085874640 is about 1277.7014902463.

The spelling of 2085874640 in words is "two billion, eighty-five million, eight hundred seventy-four thousand, six hundred forty".