2764444540 has 72 divisors (see below), whose sum is σ = 6857818128. Its totient is φ = 927912960.

The previous prime is 2764444537. The next prime is 2764444583. The reversal of 2764444540 is 454444672.

It is a super-2 number, since 2×2764444540² = 15284307229471623200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2764444493 and 2764444502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4 + ... + 74356.

It is an arithmetic number, because the mean of its divisors is an integer number (95247474).

Almost surely, 2^2764444540 is an apocalyptic number.

2764444540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2764444540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3428909064).

2764444540 is an abundant number, since it is smaller than the sum of its proper divisors (4093373588).

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

2764444540 is a wasteful number, since it uses less digits than its factorization.

2764444540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74399 (or 74384 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 40.

The square root of 2764444540 is about 52577.9853170507. The cubic root of 2764444540 is about 1403.4683629596.

The spelling of 2764444540 in words is "two billion, seven hundred sixty-four million, four hundred forty-four thousand, five hundred forty".