2549942370 has 144 divisors (see below), whose sum is σ = 7305637248. Its totient is φ = 639809280.

The previous prime is 2549942309. The next prime is 2549942377. The reversal of 2549942370 is 732499452.

2549942370 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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 (2549942377) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 700455 + ... + 704085.

It is an arithmetic number, because the mean of its divisors is an integer number (50733592).

Almost surely, 2^2549942370 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2549942370, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3652818624).

2549942370 is an abundant number, since it is smaller than the sum of its proper divisors (4755694878).

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

2549942370 is a wasteful number, since it uses less digits than its factorization.

2549942370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3687 (or 3658 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The square root of 2549942370 is about 50496.9540665573. The cubic root of 2549942370 is about 1366.1869159507.

The spelling of 2549942370 in words is "two billion, five hundred forty-nine million, nine hundred forty-two thousand, three hundred seventy".