45549970 has 16 divisors (see below), whose sum is σ = 86813208. Its totient is φ = 17148160.

The previous prime is 45549853. The next prime is 45549971. The reversal of 45549970 is 7994554.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 28633201 + 16916769 = 5351^2 + 4113^2 .

It is not an unprimeable number, because it can be changed into a prime (45549971) 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, 133801 + ... + 134140.

Almost surely, 2^45549970 is an apocalyptic number.

45549970 is a deficient number, since it is larger than the sum of its proper divisors (41263238).

45549970 is a wasteful number, since it uses less digits than its factorization.

45549970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267965.

The product of its (nonzero) digits is 226800, while the sum is 43.

The square root of 45549970 is about 6749.0717880313. The cubic root of 45549970 is about 357.1324927278.

The spelling of 45549970 in words is "forty-five million, five hundred forty-nine thousand, nine hundred seventy".