45427738 has 12 divisors (see below), whose sum is σ = 68841738. Its totient is φ = 22482840.

The previous prime is 45427721. The next prime is 45427747. The reversal of 45427738 is 83772454.

It can be written as a sum of positive squares in only one way, i.e., 27594009 + 17833729 = 5253^2 + 4223^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 45427738.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20148 + ... + 22288.

Almost surely, 2^45427738 is an apocalyptic number.

45427738 is a deficient number, since it is larger than the sum of its proper divisors (23414000).

45427738 is a wasteful number, since it uses less digits than its factorization.

45427738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2349 (or 2246 counting only the distinct ones).

The product of its digits is 188160, while the sum is 40.

The square root of 45427738 is about 6740.0102373809. The cubic root of 45427738 is about 356.8127550539.

The spelling of 45427738 in words is "forty-five million, four hundred twenty-seven thousand, seven hundred thirty-eight".