228629457 has 12 divisors (see below), whose sum is σ = 377420160. Its totient is φ = 130645368.

The previous prime is 228629431. The next prime is 228629459. The reversal of 228629457 is 754926822.

228629457 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 228629457 - 2⁷ = 228629329 is a prime.

It is a super-2 number, since 2×228629457² = 104542857216229698, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (228629459) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1814457 + ... + 1814582.

It is an arithmetic number, because the mean of its divisors is an integer number (31451680).

Almost surely, 2^228629457 is an apocalyptic number.

It is an amenable number.

228629457 is a deficient number, since it is larger than the sum of its proper divisors (148790703).

228629457 is a wasteful number, since it uses less digits than its factorization.

228629457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3629052 (or 3629049 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 228629457 is about 15120.4979084685. The cubic root of 228629457 is about 611.4731544978.

The spelling of 228629457 in words is "two hundred twenty-eight million, six hundred twenty-nine thousand, four hundred fifty-seven".