17428445 has 6 divisors (see below), whose sum is σ = 20925342. Its totient is φ = 13935288.

The previous prime is 17428429. The next prime is 17428469. The reversal of 17428445 is 54482471.

It can be written as a sum of positive squares in only one way, i.e., 13942756 + 3485689 = 3734^2 + 1867^2 .

It is not a de Polignac number, because 17428445 - 2⁴ = 17428429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8402 + ... + 10268.

It is an arithmetic number, because the mean of its divisors is an integer number (3487557).

Almost surely, 2^17428445 is an apocalyptic number.

It is an amenable number.

17428445 is a deficient number, since it is larger than the sum of its proper divisors (3496897).

17428445 is an frugal number, since it uses more digits than its factorization.

17428445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3739 (or 1872 counting only the distinct ones).

The product of its digits is 35840, while the sum is 35.

The square root of 17428445 is about 4174.7389139921. The cubic root of 17428445 is about 259.2703655950.

It can be divided in two parts, 174284 and 45, that multiplied together give a triangular number (7842780 = T₃₉₆₀).

The spelling of 17428445 in words is "seventeen million, four hundred twenty-eight thousand, four hundred forty-five".