1731272442 has 16 divisors (see below), whose sum is σ = 3463381152. Its totient is φ = 576951440.

The previous prime is 1731272377. The next prime is 1731272443. The reversal of 1731272442 is 2442721371.

It is not an unprimeable number, because it can be changed into a prime (1731272443) 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, 6108 + ... + 59159.

It is an arithmetic number, because the mean of its divisors is an integer number (216461322).

Almost surely, 2^1731272442 is an apocalyptic number.

1731272442 is an abundant number, since it is smaller than the sum of its proper divisors (1732108710).

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

1731272442 is a wasteful number, since it uses less digits than its factorization.

1731272442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69693.

The product of its digits is 18816, while the sum is 33.

The square root of 1731272442 is about 41608.5621236783. The cubic root of 1731272442 is about 1200.7570320405.

Subtracting 1731272442 from its reverse (2442721371), we obtain a square (711448929 = 26673²).

The spelling of 1731272442 in words is "one billion, seven hundred thirty-one million, two hundred seventy-two thousand, four hundred forty-two".