45421250 has 80 divisors (see below), whose sum is σ = 101217600. Its totient is φ = 14952000.

The previous prime is 45421241. The next prime is 45421261. The reversal of 45421250 is 5212454.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 253661 + ... + 253839.

It is an arithmetic number, because the mean of its divisors is an integer number (1265220).

Almost surely, 2^45421250 is an apocalyptic number.

45421250 is an abundant number, since it is smaller than the sum of its proper divisors (55796350).

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

45421250 is a wasteful number, since it uses less digits than its factorization.

45421250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237 (or 222 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 45421250 is about 6739.5289152878. The cubic root of 45421250 is about 356.7957675519.

The spelling of 45421250 in words is "forty-five million, four hundred twenty-one thousand, two hundred fifty".