45044401 has 4 divisors (see below), whose sum is σ = 45093412. Its totient is φ = 44995392.

The previous prime is 45044387. The next prime is 45044411. The reversal of 45044401 is 10444054.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17007376 + 28037025 = 4124^2 + 5295^2 .

It is a cyclic number.

It is not a de Polignac number, because 45044401 - 2⁵ = 45044369 is a prime.

It is a super-2 number, since 2×45044401² = 4057996122897602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45044411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23100 + ... + 24973.

It is an arithmetic number, because the mean of its divisors is an integer number (11273353).

Almost surely, 2^45044401 is an apocalyptic number.

It is an amenable number.

45044401 is a deficient number, since it is larger than the sum of its proper divisors (49011).

45044401 is an equidigital number, since it uses as much as digits as its factorization.

45044401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49010.

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 45044401 is about 6711.5125716935. The cubic root of 45044401 is about 355.8062768976.

Adding to 45044401 its reverse (10444054), we get a palindrome (55488455).

It can be divided in two parts, 4 and 5044401, that added together give a palindrome (5044405).

The spelling of 45044401 in words is "forty-five million, forty-four thousand, four hundred one".