29426881 has 8 divisors (see below), whose sum is σ = 33990624. Its totient is φ = 25177920.

The previous prime is 29426863. The next prime is 29426927. The reversal of 29426881 is 18862492.

29426881 = 300² + 301² + ... + 486².

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 29426881 - 2⁵ = 29426849 is a prime.

It is a super-2 number, since 2×29426881² = 1731882650776322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29426381) 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, 78495 + ... + 78868.

It is an arithmetic number, because the mean of its divisors is an integer number (4248828).

Almost surely, 2^29426881 is an apocalyptic number.

It is an amenable number.

29426881 is a deficient number, since it is larger than the sum of its proper divisors (4563743).

29426881 is a wasteful number, since it uses less digits than its factorization.

29426881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157391.

The product of its digits is 55296, while the sum is 40.

The square root of 29426881 is about 5424.6549199004. The cubic root of 29426881 is about 308.7318327042.

The spelling of 29426881 in words is "twenty-nine million, four hundred twenty-six thousand, eight hundred eighty-one".