223542420 has 24 divisors (see below), whose sum is σ = 625918944. Its totient is φ = 59611296.

The previous prime is 223542413. The next prime is 223542427. The reversal of 223542420 is 24245322.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (223542413) and next prime (223542427).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223542427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1862794 + ... + 1862913.

It is an arithmetic number, because the mean of its divisors is an integer number (26079956).

Almost surely, 2^223542420 is an apocalyptic number.

223542420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223542420 is an abundant number, since it is smaller than the sum of its proper divisors (402376524).

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

223542420 is a wasteful number, since it uses less digits than its factorization.

223542420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3725719 (or 3725717 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 223542420 is about 14951.3350574455. The cubic root of 223542420 is about 606.9039760457.

Adding to 223542420 its reverse (24245322), we get a palindrome (247787742).

The spelling of 223542420 in words is "two hundred twenty-three million, five hundred forty-two thousand, four hundred twenty".