34145890 has 8 divisors (see below), whose sum is σ = 61462620. Its totient is φ = 13658352.

The previous prime is 34145887. The next prime is 34145899. The reversal of 34145890 is 9854143.

It can be written as a sum of positive squares in 2 ways, for example, as 31393609 + 2752281 = 5603^2 + 1659^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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 (34145899) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1707285 + ... + 1707304.

Almost surely, 2^34145890 is an apocalyptic number.

34145890 is a deficient number, since it is larger than the sum of its proper divisors (27316730).

34145890 is a wasteful number, since it uses less digits than its factorization.

34145890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3414596.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 34145890 is about 5843.4484681565. The cubic root of 34145890 is about 324.4238787326.

It can be divided in two parts, 34 and 145890, that added together give a square (145924 = 382²).

The spelling of 34145890 in words is "thirty-four million, one hundred forty-five thousand, eight hundred ninety".