1742739725 has 12 divisors (see below), whose sum is σ = 2164067220. Its totient is φ = 1392211200.

The previous prime is 1742739707. The next prime is 1742739769. The reversal of 1742739725 is 5279372471.

It can be written as a sum of positive squares in 6 ways, for example, as 11930116 + 1730809609 = 3454^2 + 41603^2 .

It is not a de Polignac number, because 1742739725 - 2⁸ = 1742739469 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1742739725.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31436 + ... + 66885.

It is an arithmetic number, because the mean of its divisors is an integer number (180338935).

Almost surely, 2^1742739725 is an apocalyptic number.

It is an amenable number.

1742739725 is a deficient number, since it is larger than the sum of its proper divisors (421327495).

1742739725 is an equidigital number, since it uses as much as digits as its factorization.

1742739725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99040 (or 99035 counting only the distinct ones).

The product of its digits is 740880, while the sum is 47.

The square root of 1742739725 is about 41746.1342521676. The cubic root of 1742739725 is about 1203.4023177909.

The spelling of 1742739725 in words is "one billion, seven hundred forty-two million, seven hundred thirty-nine thousand, seven hundred twenty-five".