34423890 has 16 divisors (see below), whose sum is σ = 82617408. Its totient is φ = 9179696.

The previous prime is 34423889. The next prime is 34423891. The reversal of 34423890 is 9832443.

It is an interprime number because it is at equal distance from previous prime (34423889) and next prime (34423891).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (34423891) 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, 573702 + ... + 573761.

It is an arithmetic number, because the mean of its divisors is an integer number (5163588).

Almost surely, 2^34423890 is an apocalyptic number.

34423890 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

34423890 is an abundant number, since it is smaller than the sum of its proper divisors (48193518).

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

34423890 is a wasteful number, since it uses less digits than its factorization.

34423890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1147473.

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 34423890 is about 5867.1875715712. The cubic root of 34423890 is about 325.3019363662.

The spelling of 34423890 in words is "thirty-four million, four hundred twenty-three thousand, eight hundred ninety".