2097940540 has 12 divisors (see below), whose sum is σ = 4405675176. Its totient is φ = 839176208.

The previous prime is 2097940501. The next prime is 2097940577. The reversal of 2097940540 is 450497902.

It is a junction number, because it is equal to n+sod(n) for n = 2097940493 and 2097940502.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52448494 + ... + 52448533.

It is an arithmetic number, because the mean of its divisors is an integer number (367139598).

Almost surely, 2^2097940540 is an apocalyptic number.

2097940540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2097940540 is an abundant number, since it is smaller than the sum of its proper divisors (2307734636).

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

2097940540 is a wasteful number, since it uses less digits than its factorization.

2097940540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104897036 (or 104897034 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 2097940540 is about 45803.2808868535. The cubic root of 2097940540 is about 1280.1604087705.

The spelling of 2097940540 in words is "two billion, ninety-seven million, nine hundred forty thousand, five hundred forty".