2669194440 has 192 divisors, whose sum is σ = 9515750400. Its totient is φ = 643507200.

The previous prime is 2669194399. The next prime is 2669194447. The reversal of 2669194440 is 444919662.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (2669194447) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 754596 + ... + 758124.

It is an arithmetic number, because the mean of its divisors is an integer number (49561200).

Almost surely, 2^2669194440 is an apocalyptic number.

2669194440 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 2669194440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4757875200).

2669194440 is an abundant number, since it is smaller than the sum of its proper divisors (6846555960).

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

2669194440 is a wasteful number, since it uses less digits than its factorization.

2669194440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3748 (or 3741 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 45.

The square root of 2669194440 is about 51664.2472121679. The cubic root of 2669194440 is about 1387.1605753613.

The spelling of 2669194440 in words is "two billion, six hundred sixty-nine million, one hundred ninety-four thousand, four hundred forty".