4149445 has 8 divisors (see below), whose sum is σ = 5272344. Its totient is φ = 3124224.

The previous prime is 4149437. The next prime is 4149451. The reversal of 4149445 is 5449414.

4149445 = T₂₆₉ + T₂₇₀ + ... + T₃₅₃.

It can be written as a sum of positive squares in 4 ways, for example, as 667489 + 3481956 = 817^2 + 1866^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4149445 - 2³ = 4149437 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 7 ways as a sum of consecutive naturals, for example, 24324 + ... + 24493.

It is an arithmetic number, because the mean of its divisors is an integer number (659043).

Almost surely, 2^4149445 is an apocalyptic number.

It is an amenable number.

4149445 is a deficient number, since it is larger than the sum of its proper divisors (1122899).

4149445 is a wasteful number, since it uses less digits than its factorization.

4149445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48839.

The product of its digits is 11520, while the sum is 31.

The square root of 4149445 is about 2037.0186547992. The cubic root of 4149445 is about 160.6928934725.

Subtracting from 4149445 its sum of digits (31), we obtain a palindrome (4149414).

The spelling of 4149445 in words is "four million, one hundred forty-nine thousand, four hundred forty-five".