45420450 has 48 divisors (see below), whose sum is σ = 118578720. Its totient is φ = 11473920.

The previous prime is 45420443. The next prime is 45420457. The reversal of 45420450 is 5402454.

45420450 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (45420443) and next prime (45420457).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 45420450.

It is not an unprimeable number, because it can be changed into a prime (45420457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5119 + ... + 10818.

It is an arithmetic number, because the mean of its divisors is an integer number (2470390).

Almost surely, 2^45420450 is an apocalyptic number.

45420450 is an abundant number, since it is smaller than the sum of its proper divisors (73158270).

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

45420450 is a wasteful number, since it uses less digits than its factorization.

45420450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15971 (or 15966 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 45420450 is about 6739.4695636971. The cubic root of 45420450 is about 356.7936728033.

The spelling of 45420450 in words is "forty-five million, four hundred twenty thousand, four hundred fifty".