34420890 has 32 divisors (see below), whose sum is σ = 94412160. Its totient is φ = 7867584.

The previous prime is 34420889. The next prime is 34420927. The reversal of 34420890 is 9802443.

It is a happy number.

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

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 81745 + ... + 82164.

It is an arithmetic number, because the mean of its divisors is an integer number (2950380).

Almost surely, 2^34420890 is an apocalyptic number.

34420890 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

34420890 is an abundant number, since it is smaller than the sum of its proper divisors (59991270).

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

34420890 is a wasteful number, since it uses less digits than its factorization.

34420890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163926.

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

The square root of 34420890 is about 5866.9319068828. The cubic root of 34420890 is about 325.2924862028.

The spelling of 34420890 in words is "thirty-four million, four hundred twenty thousand, eight hundred ninety".