29742646 has 8 divisors (see below), whose sum is σ = 45455904. Its totient is φ = 14590680.

The previous prime is 29742637. The next prime is 29742677. The reversal of 29742646 is 64624792.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 29742599 and 29742608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140190 + ... + 140401.

It is an arithmetic number, because the mean of its divisors is an integer number (5681988).

Almost surely, 2^29742646 is an apocalyptic number.

29742646 is a deficient number, since it is larger than the sum of its proper divisors (15713258).

29742646 is a wasteful number, since it uses less digits than its factorization.

29742646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280646.

The product of its digits is 145152, while the sum is 40.

The square root of 29742646 is about 5453.6818755773. The cubic root of 29742646 is about 309.8321880511.

The spelling of 29742646 in words is "twenty-nine million, seven hundred forty-two thousand, six hundred forty-six".