29661996 has 96 divisors (see below), whose sum is σ = 88962048. Its totient is φ = 7476480.

The previous prime is 29661979. The next prime is 29661997. The reversal of 29661996 is 69916692.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (29661997) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24526 + ... + 25706.

It is an arithmetic number, because the mean of its divisors is an integer number (926688).

Almost surely, 2^29661996 is an apocalyptic number.

29661996 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 29661996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44481024).

29661996 is an abundant number, since it is smaller than the sum of its proper divisors (59300052).

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

29661996 is a wasteful number, since it uses less digits than its factorization.

29661996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1231 (or 1229 counting only the distinct ones).

The product of its digits is 314928, while the sum is 48.

The square root of 29661996 is about 5446.2827690086. The cubic root of 29661996 is about 309.5518881097.

The spelling of 29661996 in words is "twenty-nine million, six hundred sixty-one thousand, nine hundred ninety-six".