34257780 has 36 divisors (see below), whose sum is σ = 103915812. Its totient is φ = 9135360.

The previous prime is 34257733. The next prime is 34257803. The reversal of 34257780 is 8775243.

34257780 is a `hidden beast` number, since 3 + 4 + 2 + 577 + 80 = 666.

34257780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 26440164 + 7817616 = 5142^2 + 2796^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 94981 + ... + 95340.

Almost surely, 2^34257780 is an apocalyptic number.

34257780 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

34257780 is an abundant number, since it is smaller than the sum of its proper divisors (69658032).

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

34257780 is a wasteful number, since it uses less digits than its factorization.

34257780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190336 (or 190331 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 34257780 is about 5853.0146078752. The cubic root of 34257780 is about 324.7778521342. Note that the first 3 decimals are identical.

The spelling of 34257780 in words is "thirty-four million, two hundred fifty-seven thousand, seven hundred eighty".