1723132740 has 48 divisors (see below), whose sum is σ = 5514026112. Its totient is φ = 393858816.

The previous prime is 1723132739. The next prime is 1723132751. The reversal of 1723132740 is 472313271.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1723132698 and 1723132707.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2050929 + ... + 2051768.

It is an arithmetic number, because the mean of its divisors is an integer number (114875544).

Almost surely, 2^1723132740 is an apocalyptic number.

1723132740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1723132740 is an abundant number, since it is smaller than the sum of its proper divisors (3790893372).

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

1723132740 is a wasteful number, since it uses less digits than its factorization.

1723132740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4102716 (or 4102714 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 1723132740 is about 41510.6340592384. The cubic root of 1723132740 is about 1198.8722599451.

The spelling of 1723132740 in words is "one billion, seven hundred twenty-three million, one hundred thirty-two thousand, seven hundred forty".