770440272 has 320 divisors, whose sum is σ = 2628403200. Its totient is φ = 189112320.

The previous prime is 770440267. The next prime is 770440313. The reversal of 770440272 is 272044077.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3364254 + ... + 3364482.

It is an arithmetic number, because the mean of its divisors is an integer number (8213760).

Almost surely, 2^770440272 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 770440272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1314201600).

770440272 is an abundant number, since it is smaller than the sum of its proper divisors (1857962928).

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

770440272 is a wasteful number, since it uses less digits than its factorization.

770440272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314 (or 308 counting only the distinct ones).

The product of its (nonzero) digits is 21952, while the sum is 33.

The square root of 770440272 is about 27756.8058681110. The cubic root of 770440272 is about 916.7403040055.

The spelling of 770440272 in words is "seven hundred seventy million, four hundred forty thousand, two hundred seventy-two".