4146445 has 4 divisors (see below), whose sum is σ = 4975740. Its totient is φ = 3317152.

The previous prime is 4146409. The next prime is 4146451. The reversal of 4146445 is 5446414.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5446414 = 2 ⋅2723207.

It can be written as a sum of positive squares in 2 ways, for example, as 509796 + 3636649 = 714^2 + 1907^2 .

It is a cyclic number.

It is not a de Polignac number, because 4146445 - 2¹⁷ = 4015373 is a prime.

It is a super-2 number, since 2×4146445² = 34386012276050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 414640 + ... + 414649.

It is an arithmetic number, because the mean of its divisors is an integer number (1243935).

Almost surely, 2^4146445 is an apocalyptic number.

It is an amenable number.

4146445 is a deficient number, since it is larger than the sum of its proper divisors (829295).

4146445 is an equidigital number, since it uses as much as digits as its factorization.

4146445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 829294.

The product of its digits is 7680, while the sum is 28.

The square root of 4146445 is about 2036.2821513729. The cubic root of 4146445 is about 160.6541577776.

It can be divided in two parts, 414 and 6445, that added together give a cube (6859 = 19³).

The spelling of 4146445 in words is "four million, one hundred forty-six thousand, four hundred forty-five".