1742054721 has 24 divisors (see below), whose sum is σ = 2582746656. Its totient is φ = 1035815040.

The previous prime is 1742054689. The next prime is 1742054731. The reversal of 1742054721 is 1274502471.

It is not a de Polignac number, because 1742054721 - 2⁵ = 1742054689 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (1742054731) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 83301 + ... + 102093.

It is an arithmetic number, because the mean of its divisors is an integer number (107614444).

Almost surely, 2^1742054721 is an apocalyptic number.

1742054721 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1742054721 is a deficient number, since it is larger than the sum of its proper divisors (840691935).

1742054721 is a wasteful number, since it uses less digits than its factorization.

1742054721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18913 (or 18860 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 33.

The square root of 1742054721 is about 41737.9290454138. The cubic root of 1742054721 is about 1203.2446267297.

The spelling of 1742054721 in words is "one billion, seven hundred forty-two million, fifty-four thousand, seven hundred twenty-one".