45420403 has 8 divisors (see below), whose sum is σ = 52968800. Its totient is φ = 38931480.

The previous prime is 45420367. The next prime is 45420421. The reversal of 45420403 is 30402454.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-45420403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45420443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65868 + ... + 66553.

It is an arithmetic number, because the mean of its divisors is an integer number (6621100).

Almost surely, 2^45420403 is an apocalyptic number.

45420403 is a deficient number, since it is larger than the sum of its proper divisors (7548397).

45420403 is an equidigital number, since it uses as much as digits as its factorization.

45420403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132442 (or 132428 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 45420403 is about 6739.4660767749. The cubic root of 45420403 is about 356.7935497361.

Adding to 45420403 its reverse (30402454), we get a palindrome (75822857).

The spelling of 45420403 in words is "forty-five million, four hundred twenty thousand, four hundred three".