2071689240 has 64 divisors (see below), whose sum is σ = 6429391200. Its totient is φ = 533399552.

The previous prime is 2071689239. The next prime is 2071689247. The reversal of 2071689240 is 429861702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2071689247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 294177 + ... + 301136.

Almost surely, 2^2071689240 is an apocalyptic number.

2071689240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2071689240 is an abundant number, since it is smaller than the sum of its proper divisors (4357701960).

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

2071689240 is a wasteful number, since it uses less digits than its factorization.

2071689240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595356 (or 595352 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 2071689240 is about 45515.8130763364. The cubic root of 2071689240 is about 1274.7984794921.

The spelling of 2071689240 in words is "two billion, seventy-one million, six hundred eighty-nine thousand, two hundred forty".