228697469 has 16 divisors (see below), whose sum is σ = 307063680. Its totient is φ = 164496960.

The previous prime is 228697463. The next prime is 228697477. The reversal of 228697469 is 964796822.

It is a cyclic number.

It is not a de Polignac number, because 228697469 - 2⁸ = 228697213 is a prime.

It is a super-2 number, since 2×228697469² = 104605064654011922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 228697469.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228697463) 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, 113234 + ... + 115235.

It is an arithmetic number, because the mean of its divisors is an integer number (19191480).

Almost surely, 2^228697469 is an apocalyptic number.

It is an amenable number.

228697469 is a deficient number, since it is larger than the sum of its proper divisors (78366211).

228697469 is a wasteful number, since it uses less digits than its factorization.

228697469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228500.

The product of its digits is 2612736, while the sum is 53.

The square root of 228697469 is about 15122.7467412504. The cubic root of 228697469 is about 611.5337815486.

The spelling of 228697469 in words is "two hundred twenty-eight million, six hundred ninety-seven thousand, four hundred sixty-nine".