2731890142 has 16 divisors (see below), whose sum is σ = 4140357120. Its totient is φ = 1351824768.

The previous prime is 2731890107. The next prime is 2731890143. The reversal of 2731890142 is 2410981372.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2731890143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90738 + ... + 117034.

It is an arithmetic number, because the mean of its divisors is an integer number (258772320).

Almost surely, 2^2731890142 is an apocalyptic number.

2731890142 is a deficient number, since it is larger than the sum of its proper divisors (1408466978).

2731890142 is a wasteful number, since it uses less digits than its factorization.

2731890142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26835.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 2731890142 is about 52267.4864710367. The cubic root of 2731890142 is about 1397.9374632195.

The spelling of 2731890142 in words is "two billion, seven hundred thirty-one million, eight hundred ninety thousand, one hundred forty-two".