29061040 has 80 divisors (see below), whose sum is σ = 70709760. Its totient is φ = 11098880.

The previous prime is 29060963. The next prime is 29061047. The reversal of 29061040 is 4016092.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (29061047) 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, 221775 + ... + 221905.

It is an arithmetic number, because the mean of its divisors is an integer number (883872).

Almost surely, 2^29061040 is an apocalyptic number.

29061040 is a gapful number since it is divisible by the number (20) 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 29061040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35354880).

29061040 is an abundant number, since it is smaller than the sum of its proper divisors (41648720).

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

29061040 is a wasteful number, since it uses less digits than its factorization.

29061040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250 (or 244 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 29061040 is about 5390.8292497537. The cubic root of 29061040 is about 307.4470880823.

The spelling of 29061040 in words is "twenty-nine million, sixty-one thousand, forty".