45033409 has 8 divisors (see below), whose sum is σ = 45500840. Its totient is φ = 44568576.

The previous prime is 45033389. The next prime is 45033413. The reversal of 45033409 is 90433054.

It can be written as a sum of positive squares in 4 ways, for example, as 2822400 + 42211009 = 1680^2 + 6497^2 .

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 45033409 - 2⁷ = 45033281 is a prime.

It is a super-2 number, since 2×45033409² = 4056015852322562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45033479) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58177 + ... + 58945.

It is an arithmetic number, because the mean of its divisors is an integer number (5687605).

Almost surely, 2^45033409 is an apocalyptic number.

It is an amenable number.

45033409 is a deficient number, since it is larger than the sum of its proper divisors (467431).

45033409 is a wasteful number, since it uses less digits than its factorization.

45033409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1299.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 45033409 is about 6710.6936303187. The cubic root of 45033409 is about 355.7773325621. Note that the first 3 decimals are identical.

The spelling of 45033409 in words is "forty-five million, thirty-three thousand, four hundred nine".