29873140 has 24 divisors (see below), whose sum is σ = 68437152. Its totient is φ = 10862880.

The previous prime is 29873099. The next prime is 29873141. The reversal of 29873140 is 4137892.

It is a junction number, because it is equal to n+sod(n) for n = 29873096 and 29873105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29873141) 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, 67674 + ... + 68113.

It is an arithmetic number, because the mean of its divisors is an integer number (2851548).

Almost surely, 2^29873140 is an apocalyptic number.

29873140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29873140 is an abundant number, since it is smaller than the sum of its proper divisors (38564012).

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

29873140 is a wasteful number, since it uses less digits than its factorization.

29873140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135807 (or 135805 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 29873140 is about 5465.6326257808. The cubic root of 29873140 is about 310.2846500973.

The spelling of 29873140 in words is "twenty-nine million, eight hundred seventy-three thousand, one hundred forty".