45305340 has 48 divisors (see below), whose sum is σ = 134320032. Its totient is φ = 11370496.

The previous prime is 45305317. The next prime is 45305347. The reversal of 45305340 is 4350354.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 45305340.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45305347) 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, 21189 + ... + 23228.

It is an arithmetic number, because the mean of its divisors is an integer number (2798334).

Almost surely, 2^45305340 is an apocalyptic number.

It is an amenable number.

45305340 is an abundant number, since it is smaller than the sum of its proper divisors (89014692).

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

45305340 is a wasteful number, since it uses less digits than its factorization.

45305340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44446 (or 44444 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 45305340 is about 6730.9241564588. The cubic root of 45305340 is about 356.4920079226.

Adding to 45305340 its reverse (4350354), we get a palindrome (49655694).

It can be divided in two parts, 4530 and 5340, that added together give a triangular number (9870 = T₁₄₀).

The spelling of 45305340 in words is "forty-five million, three hundred five thousand, three hundred forty".