29489890 has 16 divisors (see below), whose sum is σ = 53182008. Its totient is φ = 11773696.

The previous prime is 29489861. The next prime is 29489899. The reversal of 29489890 is 9898492.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 26388769 + 3101121 = 5137^2 + 1761^2 .

It is a super-2 number, since 2×29489890² = 1739307224424200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (29489899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3444 + ... + 8416.

Almost surely, 2^29489890 is an apocalyptic number.

29489890 is a deficient number, since it is larger than the sum of its proper divisors (23692118).

29489890 is a wasteful number, since it uses less digits than its factorization.

29489890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5573.

The product of its (nonzero) digits is 373248, while the sum is 49.

The square root of 29489890 is about 5430.4594649072. The cubic root of 29489890 is about 308.9520283855.

The spelling of 29489890 in words is "twenty-nine million, four hundred eighty-nine thousand, eight hundred ninety".