4147890 has 48 divisors (see below), whose sum is σ = 10533888. Its totient is φ = 1045152.

The previous prime is 4147883. The next prime is 4147921. The reversal of 4147890 is 987414.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10639 + ... + 11021.

It is an arithmetic number, because the mean of its divisors is an integer number (219456).

Almost surely, 2^4147890 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4147890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5266944).

4147890 is an abundant number, since it is smaller than the sum of its proper divisors (6385998).

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

4147890 is a wasteful number, since it uses less digits than its factorization.

4147890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431 (or 412 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 4147890 is about 2036.6369337710. The cubic root of 4147890 is about 160.6728178021.

The spelling of 4147890 in words is "four million, one hundred forty-seven thousand, eight hundred ninety".