45780946 has 4 divisors (see below), whose sum is σ = 68671422. Its totient is φ = 22890472.

The previous prime is 45780929. The next prime is 45780947. The reversal of 45780946 is 64908754.

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., 27196225 + 18584721 = 5215^2 + 4311^2 .

It is not an unprimeable number, because it can be changed into a prime (45780947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11445235 + ... + 11445238.

Almost surely, 2^45780946 is an apocalyptic number.

45780946 is a deficient number, since it is larger than the sum of its proper divisors (22890476).

45780946 is a wasteful number, since it uses less digits than its factorization.

45780946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22890475.

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 45780946 is about 6766.1618366693. The cubic root of 45780946 is about 357.7351275697.

The spelling of 45780946 in words is "forty-five million, seven hundred eighty thousand, nine hundred forty-six".