45305440 has 24 divisors (see below), whose sum is σ = 107034480. Its totient is φ = 18122112.

The previous prime is 45305431. The next prime is 45305483. The reversal of 45305440 is 4450354.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 141420 + ... + 141739.

It is an arithmetic number, because the mean of its divisors is an integer number (4459770).

Almost surely, 2^45305440 is an apocalyptic number.

45305440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45305440 is an abundant number, since it is smaller than the sum of its proper divisors (61729040).

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

45305440 is a wasteful number, since it uses less digits than its factorization.

45305440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283174 (or 283166 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 45305440 is about 6730.9315848551. The cubic root of 45305440 is about 356.4922702108.

Adding to 45305440 its reverse (4450354), we get a palindrome (49755794).

The spelling of 45305440 in words is "forty-five million, three hundred five thousand, four hundred forty".