45910040 has 64 divisors (see below), whose sum is σ = 113598720. Its totient is φ = 16560000.

The previous prime is 45910019. The next prime is 45910043. The reversal of 45910040 is 4001954.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 45909988 and 45910015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45910043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66095 + ... + 66785.

It is an arithmetic number, because the mean of its divisors is an integer number (1774980).

Almost surely, 2^45910040 is an apocalyptic number.

45910040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45910040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56799360).

45910040 is an abundant number, since it is smaller than the sum of its proper divisors (67688680).

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

45910040 is a wasteful number, since it uses less digits than its factorization.

45910040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 864 (or 860 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 45910040 is about 6775.6947983214. The cubic root of 45910040 is about 358.0710614947.

Adding to 45910040 its reverse (4001954), we get a palindrome (49911994).

The spelling of 45910040 in words is "forty-five million, nine hundred ten thousand, forty".