2388921090 has 64 divisors (see below), whose sum is σ = 6138996480. Its totient is φ = 592824320.

The previous prime is 2388921089. The next prime is 2388921121. The reversal of 2388921090 is 901298832.

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, 19075 + ... + 71705.

It is an arithmetic number, because the mean of its divisors is an integer number (95921820).

Almost surely, 2^2388921090 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2388921090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3069498240).

2388921090 is an abundant number, since it is smaller than the sum of its proper divisors (3750075390).

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

2388921090 is a wasteful number, since it uses less digits than its factorization.

2388921090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52747.

The product of its (nonzero) digits is 62208, while the sum is 42.

The square root of 2388921090 is about 48876.5904089064. The cubic root of 2388921090 is about 1336.8025587911.

The spelling of 2388921090 in words is "two billion, three hundred eighty-eight million, nine hundred twenty-one thousand, ninety".