2646277438 has 24 divisors (see below), whose sum is σ = 4635923544. Its totient is φ = 1129590000.

The previous prime is 2646277429. The next prime is 2646277441. The reversal of 2646277438 is 8347726462.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a junction number, because it is equal to n+sod(n) for n = 2646277391 and 2646277400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29193 + ... + 78388.

It is an arithmetic number, because the mean of its divisors is an integer number (193163481).

Almost surely, 2^2646277438 is an apocalyptic number.

2646277438 is a deficient number, since it is larger than the sum of its proper divisors (1989646106).

2646277438 is a wasteful number, since it uses less digits than its factorization.

2646277438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107848 (or 107841 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 49.

The square root of 2646277438 is about 51441.9812798846. The cubic root of 2646277438 is about 1383.1792272064.

The spelling of 2646277438 in words is "two billion, six hundred forty-six million, two hundred seventy-seven thousand, four hundred thirty-eight".