45200978 has 4 divisors (see below), whose sum is σ = 67801470. Its totient is φ = 22600488.

The previous prime is 45200941. The next prime is 45200999. The reversal of 45200978 is 87900254.

It is a happy number.

45200978 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 41692849 + 3508129 = 6457^2 + 1873^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 11300243 + ... + 11300246.

Almost surely, 2^45200978 is an apocalyptic number.

45200978 is a deficient number, since it is larger than the sum of its proper divisors (22600492).

45200978 is a wasteful number, since it uses less digits than its factorization.

45200978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22600491.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 45200978 is about 6723.1672595585. The cubic root of 45200978 is about 356.2180680110.

The spelling of 45200978 in words is "forty-five million, two hundred thousand, nine hundred seventy-eight".