45384581 has 16 divisors (see below), whose sum is σ = 51262848. Its totient is φ = 39820800.

The previous prime is 45384553. The next prime is 45384583. The reversal of 45384581 is 18548354.

It is a cyclic number.

It is not a de Polignac number, because 45384581 - 2²² = 41190277 is a prime.

It is a super-2 number, since 2×45384581² = 4119520385091122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45384583) by changing a digit.

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, 45965 + ... + 46941.

It is an arithmetic number, because the mean of its divisors is an integer number (3203928).

Almost surely, 2^45384581 is an apocalyptic number.

45384581 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

45384581 is a deficient number, since it is larger than the sum of its proper divisors (5878267).

45384581 is a wasteful number, since it uses less digits than its factorization.

45384581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1132.

The product of its digits is 76800, while the sum is 38.

The square root of 45384581 is about 6736.8079236386. The cubic root of 45384581 is about 356.6997268488.

It can be divided in two parts, 4538 and 4581, that added together give a palindrome (9119).

The spelling of 45384581 in words is "forty-five million, three hundred eighty-four thousand, five hundred eighty-one".