45453040 has 20 divisors (see below), whose sum is σ = 105678504. Its totient is φ = 18181184.

The previous prime is 45453011. The next prime is 45453047. The reversal of 45453040 is 4035454.

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 45452996 and 45453014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45453047) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 284002 + ... + 284161.

Almost surely, 2^45453040 is an apocalyptic number.

45453040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

45453040 is an abundant number, since it is smaller than the sum of its proper divisors (60225464).

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

45453040 is a wasteful number, since it uses less digits than its factorization.

45453040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 568176 (or 568170 counting only the distinct ones).

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

The square root of 45453040 is about 6741.8869762107. The cubic root of 45453040 is about 356.8789877208.

Adding to 45453040 its reverse (4035454), we get a palindrome (49488494).

The spelling of 45453040 in words is "forty-five million, four hundred fifty-three thousand, forty".