45751378 has 4 divisors (see below), whose sum is σ = 68627070. Its totient is φ = 22875688.

The previous prime is 45751361. The next prime is 45751421. The reversal of 45751378 is 87315754.

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., 27321529 + 18429849 = 5227^2 + 4293^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 45751378.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11437843 + ... + 11437846.

Almost surely, 2^45751378 is an apocalyptic number.

45751378 is a deficient number, since it is larger than the sum of its proper divisors (22875692).

45751378 is a wasteful number, since it uses less digits than its factorization.

45751378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22875691.

The product of its digits is 117600, while the sum is 40.

The square root of 45751378 is about 6763.9764931584. The cubic root of 45751378 is about 357.6580955933.

The spelling of 45751378 in words is "forty-five million, seven hundred fifty-one thousand, three hundred seventy-eight".