229772629 has 12 divisors (see below), whose sum is σ = 244670404. Its totient is φ = 215737344.

The previous prime is 229772617. The next prime is 229772639. The reversal of 229772629 is 926277922.

229772629 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 19580625 + 210192004 = 4425^2 + 14498^2 .

It is a de Polignac number, because none of the positive numbers 2^k-229772629 is a prime.

It is a super-2 number, since 2×229772629² = 105590922075143282, which contains 22 as substring.

It is a Duffinian number.

Its product of digits (381024) is a multiple of the sum of its prime factors (1944).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229772639) 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, 176509 + ... + 177805.

Almost surely, 2^229772629 is an apocalyptic number.

It is an amenable number.

229772629 is a deficient number, since it is larger than the sum of its proper divisors (14897775).

229772629 is a wasteful number, since it uses less digits than its factorization.

229772629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1944 (or 1927 counting only the distinct ones).

The product of its digits is 381024, while the sum is 46.

The square root of 229772629 is about 15158.2528346772. The cubic root of 229772629 is about 612.4906045484.

The spelling of 229772629 in words is "two hundred twenty-nine million, seven hundred seventy-two thousand, six hundred twenty-nine".