2765644442 has 16 divisors (see below), whose sum is σ = 4529952000. Its totient is φ = 1255902240.

The previous prime is 2765644429. The next prime is 2765644457. The reversal of 2765644442 is 2444465672.

It is a junction number, because it is equal to n+sod(n) for n = 2765644393 and 2765644402.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36842 + ... + 82997.

It is an arithmetic number, because the mean of its divisors is an integer number (283122000).

Almost surely, 2^2765644442 is an apocalyptic number.

2765644442 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2765644442 is a deficient number, since it is larger than the sum of its proper divisors (1764307558).

2765644442 is a wasteful number, since it uses less digits than its factorization.

2765644442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120901.

The product of its digits is 1290240, while the sum is 44.

The square root of 2765644442 is about 52589.3947673863. The cubic root of 2765644442 is about 1403.6713911968.

The spelling of 2765644442 in words is "two billion, seven hundred sixty-five million, six hundred forty-four thousand, four hundred forty-two".