29161420 has 12 divisors (see below), whose sum is σ = 61239024. Its totient is φ = 11664560.

The previous prime is 29161403. The next prime is 29161423. The reversal of 29161420 is 2416192.

It is not an unprimeable number, because it can be changed into a prime (29161423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 729016 + ... + 729055.

It is an arithmetic number, because the mean of its divisors is an integer number (5103252).

Almost surely, 2^29161420 is an apocalyptic number.

29161420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

29161420 is an abundant number, since it is smaller than the sum of its proper divisors (32077604).

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

29161420 is a wasteful number, since it uses less digits than its factorization.

29161420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1458080 (or 1458078 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 29161420 is about 5400.1314798808. The cubic root of 29161420 is about 307.8006665467.

The spelling of 29161420 in words is "twenty-nine million, one hundred sixty-one thousand, four hundred twenty".