1731742890 has 32 divisors (see below), whose sum is σ = 4157922240. Its totient is φ = 461604864.

The previous prime is 1731742889. The next prime is 1731742919. The reversal of 1731742890 is 982471371.

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, 69937 + ... + 91403.

It is an arithmetic number, because the mean of its divisors is an integer number (129935070).

Almost surely, 2^1731742890 is an apocalyptic number.

1731742890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1731742890 is an abundant number, since it is smaller than the sum of its proper divisors (2426179350).

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

1731742890 is a wasteful number, since it uses less digits than its factorization.

1731742890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24166.

The product of its (nonzero) digits is 84672, while the sum is 42.

The square root of 1731742890 is about 41614.2149992043. The cubic root of 1731742890 is about 1200.8657849191.

The spelling of 1731742890 in words is "one billion, seven hundred thirty-one million, seven hundred forty-two thousand, eight hundred ninety".