45777140 has 24 divisors (see below), whose sum is σ = 98731752. Its totient is φ = 17815680.

The previous prime is 45777133. The next prime is 45777143. The reversal of 45777140 is 4177754.

It can be written as a sum of positive squares in 4 ways, for example, as 10588516 + 35188624 = 3254^2 + 5932^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 45777140.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45777143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30191 + ... + 31670.

It is an arithmetic number, because the mean of its divisors is an integer number (4113823).

Almost surely, 2^45777140 is an apocalyptic number.

It is an amenable number.

45777140 is an abundant number, since it is smaller than the sum of its proper divisors (52954612).

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

45777140 is a wasteful number, since it uses less digits than its factorization.

45777140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61907 (or 61905 counting only the distinct ones).

The product of its (nonzero) digits is 27440, while the sum is 35.

The square root of 45777140 is about 6765.8805783135. The cubic root of 45777140 is about 357.7252138556.

The spelling of 45777140 in words is "forty-five million, seven hundred seventy-seven thousand, one hundred forty".