45509826 has 24 divisors (see below), whose sum is σ = 96066864. Its totient is φ = 14370840.

The previous prime is 45509803. The next prime is 45509869. The reversal of 45509826 is 62890554.

45509826 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×45509826² = 4142288525100552, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8340 + ... + 12671.

It is an arithmetic number, because the mean of its divisors is an integer number (4002786).

Almost surely, 2^45509826 is an apocalyptic number.

45509826 is an abundant number, since it is smaller than the sum of its proper divisors (50557038).

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

45509826 is a wasteful number, since it uses less digits than its factorization.

45509826 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21054 (or 21035 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 39.

The square root of 45509826 is about 6746.0970938758. The cubic root of 45509826 is about 357.0275461487.

The spelling of 45509826 in words is "forty-five million, five hundred nine thousand, eight hundred twenty-six".