7877442240 has 224 divisors, whose sum is σ = 28687288320. Its totient is φ = 2032819200.

The previous prime is 7877442227. The next prime is 7877442241. The reversal of 7877442240 is 422447787.

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 (7877442241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 253135 + ... + 282545.

Almost surely, 2^7877442240 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7877442240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14343644160).

7877442240 is an abundant number, since it is smaller than the sum of its proper divisors (20809846080).

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

7877442240 is a wasteful number, since it uses less digits than its factorization.

7877442240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29468 (or 29452 counting only the distinct ones).

The product of its (nonzero) digits is 702464, while the sum is 45.

The square root of 7877442240 is about 88754.9561433050. The cubic root of 7877442240 is about 1989.7342506840.

The spelling of 7877442240 in words is "seven billion, eight hundred seventy-seven million, four hundred forty-two thousand, two hundred forty".