345472 has 16 divisors (see below), whose sum is σ = 688500. Its totient is φ = 172672.

The previous prime is 345463. The next prime is 345473. The reversal of 345472 is 274543.

It is a tau number, because it is divible by the number of its divisors (16).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1222 + ... + 1477.

345472 is a Friedman number, since it can be written as 4^(5+3)+(4+2)^7, using all its digits and the basic arithmetic operations.

2³⁴⁵⁴⁷² is an apocalyptic number.

345472 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

345472 is a deficient number, since it is larger than the sum of its proper divisors (343028).

345472 is an equidigital number, since it uses as much as digits as its factorization.

345472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2713 (or 2701 counting only the distinct ones).

The product of its digits is 3360, while the sum is 25.

The square root of 345472 is about 587.7686619751. The cubic root of 345472 is about 70.1677608910.

The spelling of 345472 in words is "three hundred forty-five thousand, four hundred seventy-two".