1952089890 has 64 divisors (see below), whose sum is σ = 4776831360. Its totient is φ = 510428160.

The previous prime is 1952089883. The next prime is 1952089913. The reversal of 1952089890 is 989802591.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 458170 + ... + 462410.

It is an arithmetic number, because the mean of its divisors is an integer number (74637990).

Almost surely, 2^1952089890 is an apocalyptic number.

1952089890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1952089890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2388415680).

1952089890 is an abundant number, since it is smaller than the sum of its proper divisors (2824741470).

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

1952089890 is a wasteful number, since it uses less digits than its factorization.

1952089890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4547.

The product of its (nonzero) digits is 466560, while the sum is 51.

The square root of 1952089890 is about 44182.4613393143. The cubic root of 1952089890 is about 1249.7791375114.

The spelling of 1952089890 in words is "one billion, nine hundred fifty-two million, eighty-nine thousand, eight hundred ninety".