1720152 has 48 divisors (see below), whose sum is σ = 5325840. Its totient is φ = 491328.

The previous prime is 1720151. The next prime is 1720157. The reversal of 1720152 is 2510271.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1720151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1203 + ... + 2210.

It is an arithmetic number, because the mean of its divisors is an integer number (110955).

2^1720152 is an apocalyptic number.

1720152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1720152 is an abundant number, since it is smaller than the sum of its proper divisors (3605688).

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

1720152 is a wasteful number, since it uses less digits than its factorization.

1720152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3432 (or 3425 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 18.

The square root of 1720152 is about 1311.5456530369. The cubic root of 1720152 is about 119.8180576142.

The spelling of 1720152 in words is "one million, seven hundred twenty thousand, one hundred fifty-two".