45771378 has 32 divisors (see below), whose sum is σ = 97557696. Its totient is φ = 14266368.

The previous prime is 45771359. The next prime is 45771379. The reversal of 45771378 is 87317754.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (45771379) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15250 + ... + 18002.

It is an arithmetic number, because the mean of its divisors is an integer number (3048678).

Almost surely, 2^45771378 is an apocalyptic number.

45771378 is an abundant number, since it is smaller than the sum of its proper divisors (51786318).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45771378 is a wasteful number, since it uses less digits than its factorization.

45771378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2938.

The product of its digits is 164640, while the sum is 42.

The square root of 45771378 is about 6765.4547518995. The cubic root of 45771378 is about 357.7102041865.

The spelling of 45771378 in words is "forty-five million, seven hundred seventy-one thousand, three hundred seventy-eight".