2138274744 has 64 divisors (see below), whose sum is σ = 5632243200. Its totient is φ = 674620416.

The previous prime is 2138274727. The next prime is 2138274757. The reversal of 2138274744 is 4474728312.

It is a junction number, because it is equal to n+sod(n) for n = 2138274696 and 2138274705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 939592 + ... + 941864.

It is an arithmetic number, because the mean of its divisors is an integer number (88003800).

Almost surely, 2^2138274744 is an apocalyptic number.

2138274744 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2138274744 is an abundant number, since it is smaller than the sum of its proper divisors (3493968456).

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

2138274744 is a wasteful number, since it uses less digits than its factorization.

2138274744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4364 (or 4360 counting only the distinct ones).

The product of its digits is 301056, while the sum is 42.

The square root of 2138274744 is about 46241.4829346984. The cubic root of 2138274744 is about 1288.3123462871.

The spelling of 2138274744 in words is "two billion, one hundred thirty-eight million, two hundred seventy-four thousand, seven hundred forty-four".