29040040 has 32 divisors (see below), whose sum is σ = 66134880. Its totient is φ = 11474752.

The previous prime is 29040023. The next prime is 29040043. The reversal of 29040040 is 4004092.

It is not an unprimeable number, because it can be changed into a prime (29040043) 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, 1054 + ... + 7693.

It is an arithmetic number, because the mean of its divisors is an integer number (2066715).

Almost surely, 2^29040040 is an apocalyptic number.

29040040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29040040 is an abundant number, since it is smaller than the sum of its proper divisors (37094840).

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

29040040 is a wasteful number, since it uses less digits than its factorization.

29040040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8841 (or 8837 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 29040040 is about 5388.8811454698. The cubic root of 29040040 is about 307.3730147452.

The spelling of 29040040 in words is "twenty-nine million, forty thousand, forty".