874889490 has 64 divisors (see below), whose sum is σ = 2150862336. Its totient is φ = 227653632.

The previous prime is 874889489. The next prime is 874889539. The reversal of 874889490 is 94988478.

It is a self number, because there is not a number n which added to its sum of digits gives 874889490.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 609814 + ... + 611246.

It is an arithmetic number, because the mean of its divisors is an integer number (33607224).

Almost surely, 2^874889490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 874889490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1075431168).

874889490 is an abundant number, since it is smaller than the sum of its proper divisors (1275972846).

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

874889490 is a wasteful number, since it uses less digits than its factorization.

874889490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1923.

The product of its (nonzero) digits is 4644864, while the sum is 57.

The square root of 874889490 is about 29578.5308965811. The cubic root of 874889490 is about 956.4253234004.

The spelling of 874889490 in words is "eight hundred seventy-four million, eight hundred eighty-nine thousand, four hundred ninety".