228693941 has 16 divisors (see below), whose sum is σ = 272149248. Its totient is φ = 188092800.

The previous prime is 228693931. The next prime is 228693943. The reversal of 228693941 is 149396822.

It is a de Polignac number, because none of the positive numbers 2^k-228693941 is a prime.

It is a super-2 number, since 2×228693941² = 104601837300222962, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 228693892 and 228693901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228693943) 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, 10976 + ... + 24038.

It is an arithmetic number, because the mean of its divisors is an integer number (17009328).

Almost surely, 2^228693941 is an apocalyptic number.

It is an amenable number.

228693941 is a deficient number, since it is larger than the sum of its proper divisors (43455307).

228693941 is a wasteful number, since it uses less digits than its factorization.

228693941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13172.

The product of its digits is 186624, while the sum is 44.

The square root of 228693941 is about 15122.6300953240. The cubic root of 228693941 is about 611.5306369252.

The spelling of 228693941 in words is "two hundred twenty-eight million, six hundred ninety-three thousand, nine hundred forty-one".