45031770 has 48 divisors (see below), whose sum is σ = 133810560. Its totient is φ = 10292832.

The previous prime is 45031757. The next prime is 45031771. The reversal of 45031770 is 7713054.

45031770 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (45031771) 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, 35110 + ... + 36369.

It is an arithmetic number, because the mean of its divisors is an integer number (2787720).

Almost surely, 2^45031770 is an apocalyptic number.

45031770 is an abundant number, since it is smaller than the sum of its proper divisors (88778790).

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

45031770 is a wasteful number, since it uses less digits than its factorization.

45031770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71499 (or 71496 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 27.

The square root of 45031770 is about 6710.5715106837. The cubic root of 45031770 is about 355.7730163138.

The spelling of 45031770 in words is "forty-five million, thirty-one thousand, seven hundred seventy".