4261618 has 4 divisors (see below), whose sum is σ = 6392430. Its totient is φ = 2130808.

The previous prime is 4261613. The next prime is 4261627. The reversal of 4261618 is 8161624.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2537649 + 1723969 = 1593^2 + 1313^2 .

It is a super-2 number, since 2×4261618² = 36322775955848, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4261613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065403 + ... + 1065406.

Almost surely, 2^4261618 is an apocalyptic number.

4261618 is a deficient number, since it is larger than the sum of its proper divisors (2130812).

4261618 is a wasteful number, since it uses less digits than its factorization.

4261618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2130811.

The product of its digits is 2304, while the sum is 28.

The square root of 4261618 is about 2064.3686686249. The cubic root of 4261618 is about 162.1280550275.

The spelling of 4261618 in words is "four million, two hundred sixty-one thousand, six hundred eighteen".