407445 has 16 divisors (see below), whose sum is σ = 680832. Its totient is φ = 207680.

The previous prime is 407437. The next prime is 407471. The reversal of 407445 is 544704.

It is not a de Polignac number, because 407445 - 2³ = 407437 is a prime.

It is a super-2 number, since 2×407445² = 332022856050, which contains 22 as substring.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a plaindrome in base 13.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 246 + ... + 935.

It is an arithmetic number, because the mean of its divisors is an integer number (42552).

2⁴⁰⁷⁴⁴⁵ is an apocalyptic number.

It is an amenable number.

407445 is a deficient number, since it is larger than the sum of its proper divisors (273387).

407445 is a wasteful number, since it uses less digits than its factorization.

407445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1212.

The product of its (nonzero) digits is 2240, while the sum is 24.

The square root of 407445 is about 638.3141859617. The cubic root of 407445 is about 74.1349497567.

The spelling of 407445 in words is "four hundred seven thousand, four hundred forty-five".