2090023440 has 160 divisors (see below), whose sum is σ = 6682596096. Its totient is φ = 539965440.

The previous prime is 2090023433. The next prime is 2090023457. The reversal of 2090023440 is 443200902.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 2090023440.

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, 3311925 + ... + 3312555.

Almost surely, 2^2090023440 is an apocalyptic number.

2090023440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2090023440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3341298048).

2090023440 is an abundant number, since it is smaller than the sum of its proper divisors (4592572656).

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

2090023440 is a wasteful number, since it uses less digits than its factorization.

2090023440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1057 (or 1051 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 2090023440 is about 45716.7741644137. The cubic root of 2090023440 is about 1278.5480443661.

The spelling of 2090023440 in words is "two billion, ninety million, twenty-three thousand, four hundred forty".