223402040 has 32 divisors (see below), whose sum is σ = 507276000. Its totient is φ = 88539264.

The previous prime is 223402033. The next prime is 223402063. The reversal of 223402040 is 40204322.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21260 + ... + 29979.

It is an arithmetic number, because the mean of its divisors is an integer number (15852375).

Almost surely, 2^223402040 is an apocalyptic number.

223402040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223402040 is an abundant number, since it is smaller than the sum of its proper divisors (283873960).

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

223402040 is a wasteful number, since it uses less digits than its factorization.

223402040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51359 (or 51355 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 223402040 is about 14946.6397561459. The cubic root of 223402040 is about 606.7769084099.

Adding to 223402040 its reverse (40204322), we get a palindrome (263606362).

The spelling of 223402040 in words is "two hundred twenty-three million, four hundred two thousand, forty".