434221491 has 8 divisors (see below), whose sum is σ = 631594944. Its totient is φ = 263164520.

The previous prime is 434221483. The next prime is 434221499. The reversal of 434221491 is 194122434.

It is an interprime number because it is at equal distance from previous prime (434221483) and next prime (434221499).

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 434221491 - 2³ = 434221483 is a prime.

It is a super-3 number, since 3×434221491³ (a number of 27 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (434221499) 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, 6579081 + ... + 6579146.

It is an arithmetic number, because the mean of its divisors is an integer number (78949368).

Almost surely, 2^434221491 is an apocalyptic number.

434221491 is a deficient number, since it is larger than the sum of its proper divisors (197373453).

434221491 is a wasteful number, since it uses less digits than its factorization.

434221491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13158241.

The product of its digits is 6912, while the sum is 30.

The square root of 434221491 is about 20837.9819320394. The cubic root of 434221491 is about 757.2462036845.

The spelling of 434221491 in words is "four hundred thirty-four million, two hundred twenty-one thousand, four hundred ninety-one".