29470140 has 144 divisors (see below), whose sum is σ = 107627520. Its totient is φ = 6376320.

The previous prime is 29470127. The next prime is 29470141. The reversal of 29470140 is 4107492.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29470141) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 23325 + ... + 24555.

Almost surely, 2^29470140 is an apocalyptic number.

29470140 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 29470140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53813760).

29470140 is an abundant number, since it is smaller than the sum of its proper divisors (78157380).

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

29470140 is a wasteful number, since it uses less digits than its factorization.

29470140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1272 (or 1267 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 29470140 is about 5428.6407138436. The cubic root of 29470140 is about 308.8830424241.

The spelling of 29470140 in words is "twenty-nine million, four hundred seventy thousand, one hundred forty".