1720343952 has 60 divisors (see below), whose sum is σ = 4817739264. Its totient is φ = 573071040.

The previous prime is 1720343929. The next prime is 1720343983. The reversal of 1720343952 is 2593430271.

1720343952 is a `hidden beast` number, since 17 + 203 + 439 + 5 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 294177 + ... + 299967.

Almost surely, 2^1720343952 is an apocalyptic number.

1720343952 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1720343952 is an abundant number, since it is smaller than the sum of its proper divisors (3097395312).

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

1720343952 is a wasteful number, since it uses less digits than its factorization.

1720343952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7868 (or 7859 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 1720343952 is about 41477.0292089489. The cubic root of 1720343952 is about 1198.2251428627.

The spelling of 1720343952 in words is "one billion, seven hundred twenty million, three hundred forty-three thousand, nine hundred fifty-two".