2252139742 has 24 divisors (see below), whose sum is σ = 3473869896. Its totient is φ = 1094814864.

The previous prime is 2252139733. The next prime is 2252139761. The reversal of 2252139742 is 2479312522.

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, 834948 + ... + 837640.

It is an arithmetic number, because the mean of its divisors is an integer number (144744579).

Almost surely, 2^2252139742 is an apocalyptic number.

2252139742 is a deficient number, since it is larger than the sum of its proper divisors (1221730154).

2252139742 is an equidigital number, since it uses as much as digits as its factorization.

2252139742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2920 (or 2841 counting only the distinct ones).

The product of its digits is 60480, while the sum is 37.

The square root of 2252139742 is about 47456.7144037596. The cubic root of 2252139742 is about 1310.7859514551.

It can be divided in two parts, 225213 and 9742, that added together give a triangular number (234955 = T₆₈₅).

The spelling of 2252139742 in words is "two billion, two hundred fifty-two million, one hundred thirty-nine thousand, seven hundred forty-two".