228960413 has 4 divisors (see below), whose sum is σ = 249775008. Its totient is φ = 208145820.

The previous prime is 228960409. The next prime is 228960427. The reversal of 228960413 is 314069822.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 228960413 - 2² = 228960409 is a prime.

It is a super-2 number, since 2×228960413² = 104845741442261138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228960463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10407281 + ... + 10407302.

It is an arithmetic number, because the mean of its divisors is an integer number (62443752).

Almost surely, 2^228960413 is an apocalyptic number.

It is an amenable number.

228960413 is a deficient number, since it is larger than the sum of its proper divisors (20814595).

228960413 is a wasteful number, since it uses less digits than its factorization.

228960413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20814594.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 228960413 is about 15131.4379025921. The cubic root of 228960413 is about 611.7680612904.

The spelling of 228960413 in words is "two hundred twenty-eight million, nine hundred sixty thousand, four hundred thirteen".