29641690 has 16 divisors (see below), whose sum is σ = 57459528. Its totient is φ = 10944576.

The previous prime is 29641643. The next prime is 29641751. The reversal of 29641690 is 9614692.

It can be written as a sum of positive squares in 4 ways, for example, as 26842761 + 2798929 = 5181^2 + 1673^2 .

It is a super-2 number, since 2×29641690² = 1757259572112200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113877 + ... + 114136.

Almost surely, 2^29641690 is an apocalyptic number.

29641690 is a deficient number, since it is larger than the sum of its proper divisors (27817838).

29641690 is a wasteful number, since it uses less digits than its factorization.

29641690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228033.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 29641690 is about 5444.4182425673. The cubic root of 29641690 is about 309.4812343394.

The spelling of 29641690 in words is "twenty-nine million, six hundred forty-one thousand, six hundred ninety".