29023680 has 168 divisors, whose sum is σ = 107368848. Its totient is φ = 6623232.

The previous prime is 29023669. The next prime is 29023703. The reversal of 29023680 is 8632092.

It is a tau number, because it is divible by the number of its divisors (168).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46732 + ... + 47348.

Almost surely, 2^29023680 is an apocalyptic number.

29023680 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 29023680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53684424).

29023680 is an abundant number, since it is smaller than the sum of its proper divisors (78345168).

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

29023680 is a wasteful number, since it uses less digits than its factorization.

29023680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651 (or 634 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 29023680 is about 5387.3629912973. The cubic root of 29023680 is about 307.3152833380.

The spelling of 29023680 in words is "twenty-nine million, twenty-three thousand, six hundred eighty".