29404020 has 48 divisors (see below), whose sum is σ = 86667840. Its totient is φ = 7428096.

The previous prime is 29404009. The next prime is 29404021. The reversal of 29404020 is 2040492.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29404021) 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, 11757 + ... + 14036.

It is an arithmetic number, because the mean of its divisors is an integer number (1805580).

Almost surely, 2^29404020 is an apocalyptic number.

29404020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29404020 is an abundant number, since it is smaller than the sum of its proper divisors (57263820).

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

29404020 is a wasteful number, since it uses less digits than its factorization.

29404020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25824 (or 25822 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 29404020 is about 5422.5473718539. The cubic root of 29404020 is about 308.6518633396.

The spelling of 29404020 in words is "twenty-nine million, four hundred four thousand, twenty".