29940961 has 8 divisors (see below), whose sum is σ = 31795200. Its totient is φ = 28097088.

The previous prime is 29940949. The next prime is 29940983. The reversal of 29940961 is 16904992.

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

It is a cyclic number.

It is not a de Polignac number, because 29940961 - 2¹³ = 29932769 is a prime.

It is a super-2 number, since 2×29940961² = 1792922291207042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29940901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3840 + ... + 8638.

It is an arithmetic number, because the mean of its divisors is an integer number (3974400).

Almost surely, 2^29940961 is an apocalyptic number.

It is an amenable number.

29940961 is a deficient number, since it is larger than the sum of its proper divisors (1854239).

29940961 is a wasteful number, since it uses less digits than its factorization.

29940961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5183.

The product of its (nonzero) digits is 34992, while the sum is 40.

The square root of 29940961 is about 5471.8334221721. The cubic root of 29940961 is about 310.5192857382.

The spelling of 29940961 in words is "twenty-nine million, nine hundred forty thousand, nine hundred sixty-one".