1745730740 has 24 divisors (see below), whose sum is σ = 3948037800. Its totient is φ = 644577408.

The previous prime is 1745730733. The next prime is 1745730793. The reversal of 1745730740 is 470375471.

It can be written as a sum of positive squares in 4 ways, for example, as 145250704 + 1600480036 = 12052^2 + 40006^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1745730694 and 1745730703.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3356915 + ... + 3357434.

It is an arithmetic number, because the mean of its divisors is an integer number (164501575).

Almost surely, 2^1745730740 is an apocalyptic number.

1745730740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1745730740 is an abundant number, since it is smaller than the sum of its proper divisors (2202307060).

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

1745730740 is a wasteful number, since it uses less digits than its factorization.

1745730740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6714371 (or 6714369 counting only the distinct ones).

The product of its (nonzero) digits is 82320, while the sum is 38.

The square root of 1745730740 is about 41781.9427504275. The cubic root of 1745730740 is about 1204.0903794510.

The spelling of 1745730740 in words is "one billion, seven hundred forty-five million, seven hundred thirty thousand, seven hundred forty".