1745241640 has 16 divisors (see below), whose sum is σ = 3926793780. Its totient is φ = 698096640.

The previous prime is 1745241613. The next prime is 1745241643. The reversal of 1745241640 is 461425471.

It can be written as a sum of positive squares in 2 ways, for example, as 1591531236 + 153710404 = 39894^2 + 12398^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1745241596 and 1745241605.

It is not an unprimeable number, because it can be changed into a prime (1745241643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21815481 + ... + 21815560.

Almost surely, 2^1745241640 is an apocalyptic number.

1745241640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1745241640 is an abundant number, since it is smaller than the sum of its proper divisors (2181552140).

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

1745241640 is a wasteful number, since it uses less digits than its factorization.

1745241640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43631052 (or 43631048 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 1745241640 is about 41776.0893334931. The cubic root of 1745241640 is about 1203.9779192648.

The spelling of 1745241640 in words is "one billion, seven hundred forty-five million, two hundred forty-one thousand, six hundred forty".