1749416421 has 8 divisors (see below), whose sum is σ = 2376565920. Its totient is φ = 1144272272.

The previous prime is 1749416419. The next prime is 1749416477. The reversal of 1749416421 is 1246149471.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1749416421 - 2¹ = 1749416419 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1749416421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1749416401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5501151 + ... + 5501468.

It is an arithmetic number, because the mean of its divisors is an integer number (297070740).

Almost surely, 2^1749416421 is an apocalyptic number.

It is an amenable number.

1749416421 is a deficient number, since it is larger than the sum of its proper divisors (627149499).

1749416421 is a wasteful number, since it uses less digits than its factorization.

1749416421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11002675.

The product of its digits is 48384, while the sum is 39.

The square root of 1749416421 is about 41826.0256419373. The cubic root of 1749416421 is about 1204.9371640128.

The spelling of 1749416421 in words is "one billion, seven hundred forty-nine million, four hundred sixteen thousand, four hundred twenty-one".