223040829 has 32 divisors (see below), whose sum is σ = 344309760. Its totient is φ = 127008000.

The previous prime is 223040777. The next prime is 223040863. The reversal of 223040829 is 928040322.

It is not a de Polignac number, because 223040829 - 2¹² = 223036733 is a prime.

It is a super-2 number, since 2×223040829² = 99494422802014482, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 223040796 and 223040805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223040879) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 78229 + ... + 81029.

It is an arithmetic number, because the mean of its divisors is an integer number (10759680).

Almost surely, 2^223040829 is an apocalyptic number.

It is an amenable number.

223040829 is a deficient number, since it is larger than the sum of its proper divisors (121268931).

223040829 is a wasteful number, since it uses less digits than its factorization.

223040829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2961.

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 223040829 is about 14934.5515165337. The cubic root of 223040829 is about 606.4497064958.

The spelling of 223040829 in words is "two hundred twenty-three million, forty thousand, eight hundred twenty-nine".