45688281 has 8 divisors (see below), whose sum is σ = 63566400. Its totient is φ = 29134512.

The previous prime is 45688249. The next prime is 45688289. The reversal of 45688281 is 18288654.

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

It is not a de Polignac number, because 45688281 - 2⁵ = 45688249 is a prime.

It is a super-2 number, since 2×45688281² = 4174838041469922, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (45688289) 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, 331006 + ... + 331143.

It is an arithmetic number, because the mean of its divisors is an integer number (7945800).

Almost surely, 2^45688281 is an apocalyptic number.

It is an amenable number.

45688281 is a deficient number, since it is larger than the sum of its proper divisors (17878119).

45688281 is a wasteful number, since it uses less digits than its factorization.

45688281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662175.

The product of its digits is 122880, while the sum is 42.

The square root of 45688281 is about 6759.3106897079. The cubic root of 45688281 is about 357.4936012026.

The spelling of 45688281 in words is "forty-five million, six hundred eighty-eight thousand, two hundred eighty-one".