2131773040 has 20 divisors (see below), whose sum is σ = 4956372504. Its totient is φ = 852709184.

The previous prime is 2131773029. The next prime is 2131773043. The reversal of 2131773040 is 403771312.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131773043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13323502 + ... + 13323661.

Almost surely, 2^2131773040 is an apocalyptic number.

2131773040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2131773040 is an abundant number, since it is smaller than the sum of its proper divisors (2824599464).

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

2131773040 is a wasteful number, since it uses less digits than its factorization.

2131773040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26647176 (or 26647170 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 28.

The square root of 2131773040 is about 46171.1277748335. The cubic root of 2131773040 is about 1287.0052598773.

The spelling of 2131773040 in words is "two billion, one hundred thirty-one million, seven hundred seventy-three thousand, forty".