45801778 has 16 divisors (see below), whose sum is σ = 75652704. Its totient is φ = 20623360.

The previous prime is 45801697. The next prime is 45801779. The reversal of 45801778 is 87710854.

45801778 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×45801778² = 4195605735922568, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 45801778.

It is not an unprimeable number, because it can be changed into a prime (45801779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7375 + ... + 12082.

It is an arithmetic number, because the mean of its divisors is an integer number (4728294).

Almost surely, 2^45801778 is an apocalyptic number.

45801778 is a deficient number, since it is larger than the sum of its proper divisors (29850926).

45801778 is a wasteful number, since it uses less digits than its factorization.

45801778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19577.

The product of its (nonzero) digits is 62720, while the sum is 40.

The square root of 45801778 is about 6767.7010867798. The cubic root of 45801778 is about 357.7893801846.

The spelling of 45801778 in words is "forty-five million, eight hundred one thousand, seven hundred seventy-eight".