1712172240 has 120 divisors (see below), whose sum is σ = 5759714688. Its totient is φ = 455811840.

The previous prime is 1712172211. The next prime is 1712172281. The reversal of 1712172240 is 422712171.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (120).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 521805 + ... + 525075.

Almost surely, 2^1712172240 is an apocalyptic number.

1712172240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1712172240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2879857344).

1712172240 is an abundant number, since it is smaller than the sum of its proper divisors (4047542448).

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

1712172240 is a wasteful number, since it uses less digits than its factorization.

1712172240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4017 (or 4008 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 27.

The square root of 1712172240 is about 41378.4030624673. The cubic root of 1712172240 is about 1196.3249229974.

The spelling of 1712172240 in words is "one billion, seven hundred twelve million, one hundred seventy-two thousand, two hundred forty".