223040142 has 40 divisors (see below), whose sum is σ = 538224456. Its totient is φ = 68627088.

The previous prime is 223040101. The next prime is 223040143. The reversal of 223040142 is 241040322.

223040142 is a `hidden beast` number, since 223 + 0 + 401 + 42 = 666.

223040142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223040143) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 50848 + ... + 55059.

Almost surely, 2^223040142 is an apocalyptic number.

223040142 is an abundant number, since it is smaller than the sum of its proper divisors (315184314).

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

223040142 is a wasteful number, since it uses less digits than its factorization.

223040142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105934 (or 105925 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 223040142 is about 14934.5285161601. The cubic root of 223040142 is about 606.4490838425.

Adding to 223040142 its reverse (241040322), we get a palindrome (464080464).

The spelling of 223040142 in words is "two hundred twenty-three million, forty thousand, one hundred forty-two".