4945578 has 16 divisors (see below), whose sum is σ = 10790496. Its totient is φ = 1498640.

The previous prime is 4945553. The next prime is 4945579. The reversal of 4945578 is 8755494.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4945579) 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, 37401 + ... + 37532.

It is an arithmetic number, because the mean of its divisors is an integer number (674406).

Almost surely, 2^4945578 is an apocalyptic number.

4945578 is an abundant number, since it is smaller than the sum of its proper divisors (5844918).

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

4945578 is a wasteful number, since it uses less digits than its factorization.

4945578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74949.

The product of its digits is 201600, while the sum is 42.

The square root of 4945578 is about 2223.8655534901. The cubic root of 4945578 is about 170.3749279826.

It can be divided in two parts, 49 and 45578, that multiplied together give a palindrome (2233322).

The spelling of 4945578 in words is "four million, nine hundred forty-five thousand, five hundred seventy-eight".