45355540 has 48 divisors (see below), whose sum is σ = 101743488. Its totient is φ = 16942464.

The previous prime is 45355529. The next prime is 45355543. The reversal of 45355540 is 4555354.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45355543) 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, 18634 + ... + 20926.

It is an arithmetic number, because the mean of its divisors is an integer number (2119656).

Almost surely, 2^45355540 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 45355540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50871744).

45355540 is an abundant number, since it is smaller than the sum of its proper divisors (56387948).

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

45355540 is a wasteful number, since it uses less digits than its factorization.

45355540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2368 (or 2366 counting only the distinct ones).

The product of its (nonzero) digits is 30000, while the sum is 31.

The square root of 45355540 is about 6734.6521810707. The cubic root of 45355540 is about 356.6236281178.

The spelling of 45355540 in words is "forty-five million, three hundred fifty-five thousand, five hundred forty".