29270421 has 12 divisors (see below), whose sum is σ = 44118048. Its totient is φ = 18665064.

The previous prime is 29270411. The next prime is 29270459. The reversal of 29270421 is 12407292.

It is not a de Polignac number, because 29270421 - 2⁹ = 29269909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29270411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70495 + ... + 70908.

It is an arithmetic number, because the mean of its divisors is an integer number (3676504).

Almost surely, 2^29270421 is an apocalyptic number.

It is an amenable number.

29270421 is a deficient number, since it is larger than the sum of its proper divisors (14847627).

29270421 is a wasteful number, since it uses less digits than its factorization.

29270421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141432 (or 141429 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 29270421 is about 5410.2145059138. The cubic root of 29270421 is about 308.1836939016.

The spelling of 29270421 in words is "twenty-nine million, two hundred seventy thousand, four hundred twenty-one".