29699136 has 140 divisors (see below), whose sum is σ = 93492828. Its totient is φ = 9289728.

The previous prime is 29699107. The next prime is 29699149. The reversal of 29699136 is 63199692.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 15681600 + 14017536 = 3960^2 + 3744^2 .

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 a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 29699091 and 29699100.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 87960 + ... + 88296.

Almost surely, 2^29699136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 29699136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46746414).

29699136 is an abundant number, since it is smaller than the sum of its proper divisors (63793692).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

29699136 is a wasteful number, since it uses less digits than its factorization.

29699136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378 (or 359 counting only the distinct ones).

The product of its digits is 157464, while the sum is 45.

The square root of 29699136 is about 5449.6913674079. The cubic root of 29699136 is about 309.6810316111.

The spelling of 29699136 in words is "twenty-nine million, six hundred ninety-nine thousand, one hundred thirty-six".