2549298906 has 192 divisors, whose sum is σ = 7213280256. Its totient is φ = 660979440.

The previous prime is 2549298893. The next prime is 2549298929. The reversal of 2549298906 is 6098929452.

It is a happy number.

2549298906 is a `hidden beast` number, since 2 + 549 + 2 + 9 + 8 + 90 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4527781 + ... + 4528343.

It is an arithmetic number, because the mean of its divisors is an integer number (37569168).

Almost surely, 2^2549298906 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2549298906, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3606640128).

2549298906 is an abundant number, since it is smaller than the sum of its proper divisors (4663981350).

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

2549298906 is an equidigital number, since it uses as much as digits as its factorization.

2549298906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620 (or 586 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 54.

The square root of 2549298906 is about 50490.5823495828. The cubic root of 2549298906 is about 1366.0719896864.

The spelling of 2549298906 in words is "two billion, five hundred forty-nine million, two hundred ninety-eight thousand, nine hundred six".