2772400540 has 48 divisors (see below), whose sum is σ = 7165593792. Its totient is φ = 877418496.

The previous prime is 2772400537. The next prime is 2772400559. The reversal of 2772400540 is 450042772.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 759829 + ... + 763468.

It is an arithmetic number, because the mean of its divisors is an integer number (149283204).

Almost surely, 2^2772400540 is an apocalyptic number.

2772400540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2772400540 is an abundant number, since it is smaller than the sum of its proper divisors (4393193252).

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

2772400540 is a wasteful number, since it uses less digits than its factorization.

2772400540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1523326 (or 1523324 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 31.

The square root of 2772400540 is about 52653.5900010626. The cubic root of 2772400540 is about 1404.8134553056.

The spelling of 2772400540 in words is "two billion, seven hundred seventy-two million, four hundred thousand, five hundred forty".