45453540 has 96 divisors (see below), whose sum is σ = 141240960. Its totient is φ = 10828800.

The previous prime is 45453517. The next prime is 45453553. The reversal of 45453540 is 4535454.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 45453498 and 45453507.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39696 + ... + 40824.

It is an arithmetic number, because the mean of its divisors is an integer number (1471260).

Almost surely, 2^45453540 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 45453540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70620480).

45453540 is an abundant number, since it is smaller than the sum of its proper divisors (95787420).

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

45453540 is a wasteful number, since it uses less digits than its factorization.

45453540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1213 (or 1211 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 30.

The square root of 45453540 is about 6741.9240577153. The cubic root of 45453540 is about 356.8802963156.

Adding to 45453540 its reverse (4535454), we get a palindrome (49988994).

The spelling of 45453540 in words is "forty-five million, four hundred fifty-three thousand, five hundred forty".