29081201240 has 64 divisors (see below), whose sum is σ = 80532567360. Its totient is φ = 9203719680.

The previous prime is 29081201239. The next prime is 29081201243. The reversal of 29081201240 is 4210218092.

It is a super-3 number, since 3×29081201240³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29081201243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3991031 + ... + 3998310.

It is an arithmetic number, because the mean of its divisors is an integer number (1258321365).

Almost surely, 2^29081201240 is an apocalyptic number.

29081201240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29081201240 is an abundant number, since it is smaller than the sum of its proper divisors (51451366120).

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

29081201240 is a wasteful number, since it uses less digits than its factorization.

29081201240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7989372 (or 7989368 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 29.

The spelling of 29081201240 in words is "twenty-nine billion, eighty-one million, two hundred one thousand, two hundred forty".