34821420 has 24 divisors (see below), whose sum is σ = 97500144. Its totient is φ = 9285696.

The previous prime is 34821419. The next prime is 34821421. The reversal of 34821420 is 2412843.

It is an interprime number because it is at equal distance from previous prime (34821419) and next prime (34821421).

It is not an unprimeable number, because it can be changed into a prime (34821421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 290119 + ... + 290238.

It is an arithmetic number, because the mean of its divisors is an integer number (4062506).

Almost surely, 2^34821420 is an apocalyptic number.

34821420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

34821420 is an abundant number, since it is smaller than the sum of its proper divisors (62678724).

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

34821420 is a wasteful number, since it uses less digits than its factorization.

34821420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580369 (or 580367 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 34821420 is about 5900.9677172477. The cubic root of 34821420 is about 326.5493516451.

The spelling of 34821420 in words is "thirty-four million, eight hundred twenty-one thousand, four hundred twenty".