1755345490 has 24 divisors (see below), whose sum is σ = 3247350372. Its totient is φ = 683156160.

The previous prime is 1755345479. The next prime is 1755345497. The reversal of 1755345490 is 945435571.

It can be written as a sum of positive squares in 6 ways, for example, as 1480017841 + 275327649 = 38471^2 + 16593^2 .

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1755345497) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50421 + ... + 77800.

Almost surely, 2^1755345490 is an apocalyptic number.

1755345490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1755345490 is a deficient number, since it is larger than the sum of its proper divisors (1492004882).

1755345490 is a wasteful number, since it uses less digits than its factorization.

1755345490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128302 (or 128265 counting only the distinct ones).

The product of its (nonzero) digits is 378000, while the sum is 43.

The square root of 1755345490 is about 41896.8434371851. The cubic root of 1755345490 is about 1206.2968745510.

The spelling of 1755345490 in words is "one billion, seven hundred fifty-five million, three hundred forty-five thousand, four hundred ninety".