34782420 has 24 divisors (see below), whose sum is σ = 97390944. Its totient is φ = 9275296.

The previous prime is 34782413. The next prime is 34782431. The reversal of 34782420 is 2428743.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 289794 + ... + 289913.

It is an arithmetic number, because the mean of its divisors is an integer number (4057956).

Almost surely, 2^34782420 is an apocalyptic number.

34782420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

34782420 is an abundant number, since it is smaller than the sum of its proper divisors (62608524).

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

34782420 is a wasteful number, since it uses less digits than its factorization.

34782420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579719 (or 579717 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 34782420 is about 5897.6622487219. The cubic root of 34782420 is about 326.4273943151.

The spelling of 34782420 in words is "thirty-four million, seven hundred eighty-two thousand, four hundred twenty".