34451890 has 32 divisors (see below), whose sum is σ = 69310080. Its totient is φ = 12220800.

The previous prime is 34451873. The next prime is 34451891. The reversal of 34451890 is 9815443.

It is not an unprimeable number, because it can be changed into a prime (34451891) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 691 + ... + 8329.

It is an arithmetic number, because the mean of its divisors is an integer number (2165940).

Almost surely, 2^34451890 is an apocalyptic number.

34451890 is an abundant number, since it is smaller than the sum of its proper divisors (34858190).

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

34451890 is a wasteful number, since it uses less digits than its factorization.

34451890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7698.

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

The square root of 34451890 is about 5869.5732383198. The cubic root of 34451890 is about 325.3901114268.

It can be divided in two parts, 3445 and 1890, that added together give a palindrome (5335).

The spelling of 34451890 in words is "thirty-four million, four hundred fifty-one thousand, eight hundred ninety".