34389890 has 16 divisors (see below), whose sum is σ = 62024832. Its totient is φ = 13728624.

The previous prime is 34389889. The next prime is 34389893. The reversal of 34389890 is 9898343.

34389890 = T₄₄ + T₄₅ + ... + T₅₉₀.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (34389893) 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, 2327 + ... + 8613.

It is an arithmetic number, because the mean of its divisors is an integer number (3876552).

Almost surely, 2^34389890 is an apocalyptic number.

34389890 is a deficient number, since it is larger than the sum of its proper divisors (27634942).

34389890 is a wasteful number, since it uses less digits than its factorization.

34389890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6841.

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 34389890 is about 5864.2893857653. The cubic root of 34389890 is about 325.1948023459.

The spelling of 34389890 in words is "thirty-four million, three hundred eighty-nine thousand, eight hundred ninety".