223487742 has 32 divisors (see below), whose sum is σ = 465076224. Its totient is φ = 71517600.

The previous prime is 223487731. The next prime is 223487743. The reversal of 223487742 is 247784322.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 223487742.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223487743) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18892 + ... + 28352.

It is an arithmetic number, because the mean of its divisors is an integer number (14533632).

Almost surely, 2^223487742 is an apocalyptic number.

223487742 is an abundant number, since it is smaller than the sum of its proper divisors (241588482).

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

223487742 is a wasteful number, since it uses less digits than its factorization.

223487742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9624.

The product of its digits is 150528, while the sum is 39.

The square root of 223487742 is about 14949.5064132566. The cubic root of 223487742 is about 606.8544895372.

The spelling of 223487742 in words is "two hundred twenty-three million, four hundred eighty-seven thousand, seven hundred forty-two".