1744428746 has 4 divisors (see below), whose sum is σ = 2616643122. Its totient is φ = 872214372.

The previous prime is 1744428743. The next prime is 1744428757. The reversal of 1744428746 is 6478244471.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6478244471 = 733 ⋅8837987.

It can be written as a sum of positive squares in only one way, i.e., 1736805625 + 7623121 = 41675^2 + 2761^2 .

It is a super-2 number, since 2×1744428746² = 6086063299742265032, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1744428746.

It is not an unprimeable number, because it can be changed into a prime (1744428743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 436107185 + ... + 436107188.

Almost surely, 2^1744428746 is an apocalyptic number.

1744428746 is a deficient number, since it is larger than the sum of its proper divisors (872214376).

1744428746 is an equidigital number, since it uses as much as digits as its factorization.

1744428746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 872214375.

The product of its digits is 1204224, while the sum is 47.

The square root of 1744428746 is about 41766.3590225435. The cubic root of 1744428746 is about 1203.7909616927.

The spelling of 1744428746 in words is "one billion, seven hundred forty-four million, four hundred twenty-eight thousand, seven hundred forty-six".