34409890 has 24 divisors (see below), whose sum is σ = 63445788. Its totient is φ = 13436640.

The previous prime is 34409861. The next prime is 34409899. The reversal of 34409890 is 9890443.

It can be written as a sum of positive squares in 2 ways, for example, as 27973521 + 6436369 = 5289^2 + 2537^2 .

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (34409899) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17560 + ... + 19420.

Almost surely, 2^34409890 is an apocalyptic number.

34409890 is a deficient number, since it is larger than the sum of its proper divisors (29035898).

34409890 is a wasteful number, since it uses less digits than its factorization.

34409890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1954 (or 1911 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 34409890 is about 5865.9943743580. The cubic root of 34409890 is about 325.2578309049.

The spelling of 34409890 in words is "thirty-four million, four hundred nine thousand, eight hundred ninety".