45226440 has 192 divisors, whose sum is σ = 170501760. Its totient is φ = 10183680.

The previous prime is 45226429. The next prime is 45226453. The reversal of 45226440 is 4462254.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 330052 + ... + 330188.

It is an arithmetic number, because the mean of its divisors is an integer number (888030).

Almost surely, 2^45226440 is an apocalyptic number.

45226440 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 45226440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85250880).

45226440 is an abundant number, since it is smaller than the sum of its proper divisors (125275320).

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

45226440 is a wasteful number, since it uses less digits than its factorization.

45226440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 292 (or 285 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 45226440 is about 6725.0605945226. The cubic root of 45226440 is about 356.2849420944.

Adding to 45226440 its reverse (4462254), we get a palindrome (49688694).

The spelling of 45226440 in words is "forty-five million, two hundred twenty-six thousand, four hundred forty".