45081320 has 16 divisors (see below), whose sum is σ = 101433060. Its totient is φ = 18032512.

The previous prime is 45081313. The next prime is 45081383. The reversal of 45081320 is 2318054.

It can be written as a sum of positive squares in 2 ways, for example, as 40729924 + 4351396 = 6382^2 + 2086^2 .

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, 563477 + ... + 563556.

Almost surely, 2^45081320 is an apocalyptic number.

45081320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45081320 is an abundant number, since it is smaller than the sum of its proper divisors (56351740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45081320 is a wasteful number, since it uses less digits than its factorization.

45081320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1127044 (or 1127040 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 45081320 is about 6714.2624315706. The cubic root of 45081320 is about 355.9034582302.

Adding to 45081320 its reverse (2318054), we get a palindrome (47399374).

The spelling of 45081320 in words is "forty-five million, eighty-one thousand, three hundred twenty".