45521838 has 40 divisors (see below), whose sum is σ = 102389232. Its totient is φ = 15116544.

The previous prime is 45521837. The next prime is 45521873. The reversal of 45521838 is 83812554.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45521831) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 78606 + ... + 79182.

Almost surely, 2^45521838 is an apocalyptic number.

45521838 is an abundant number, since it is smaller than the sum of its proper divisors (56867394).

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

45521838 is a wasteful number, since it uses less digits than its factorization.

45521838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1078 (or 1069 counting only the distinct ones).

The product of its digits is 38400, while the sum is 36.

The square root of 45521838 is about 6746.9873276893. The cubic root of 45521838 is about 357.0589550260.

The spelling of 45521838 in words is "forty-five million, five hundred twenty-one thousand, eight hundred thirty-eight".