29916004840 has 32 divisors (see below), whose sum is σ = 67928553000. Its totient is φ = 11856616704.

The previous prime is 29916004823. The next prime is 29916004843. The reversal of 29916004840 is 4840061992.

It can be written as a sum of positive squares in 4 ways, for example, as 25858569636 + 4057435204 = 160806^2 + 63698^2 .

It is not an unprimeable number, because it can be changed into a prime (29916004843) 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, 3426375 + ... + 3435094.

Almost surely, 2^29916004840 is an apocalyptic number.

29916004840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29916004840 is an abundant number, since it is smaller than the sum of its proper divisors (38012548160).

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

29916004840 is a wasteful number, since it uses less digits than its factorization.

29916004840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6861589 (or 6861585 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 43.

The spelling of 29916004840 in words is "twenty-nine billion, nine hundred sixteen million, four thousand, eight hundred forty".