57226890 has 64 divisors (see below), whose sum is σ = 159158016. Its totient is φ = 12897792.

The previous prime is 57226861. The next prime is 57226891. The reversal of 57226890 is 9862275.

It is a happy number.

57226890 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (57226891) 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 31 ways as a sum of consecutive naturals, for example, 13464 + ... + 17196.

It is an arithmetic number, because the mean of its divisors is an integer number (2486844).

Almost surely, 2^57226890 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57226890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79579008).

57226890 is an abundant number, since it is smaller than the sum of its proper divisors (101931126).

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

57226890 is a wasteful number, since it uses less digits than its factorization.

57226890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3823.

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 57226890 is about 7564.8456692784. The cubic root of 57226890 is about 385.3600724239.

The spelling of 57226890 in words is "fifty-seven million, two hundred twenty-six thousand, eight hundred ninety".