772532280 has 192 divisors, whose sum is σ = 2821815360. Its totient is φ = 181868544.

The previous prime is 772532269. The next prime is 772532323. The reversal of 772532280 is 82235277.

It is a happy number.

It is a super-2 number, since 2×772532280² = 1193612247283996800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 104052 + ... + 111228.

It is an arithmetic number, because the mean of its divisors is an integer number (14696955).

Almost surely, 2^772532280 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 772532280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1410907680).

772532280 is an abundant number, since it is smaller than the sum of its proper divisors (2049283080).

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

772532280 is a wasteful number, since it uses less digits than its factorization.

772532280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7230 (or 7223 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 772532280 is about 27794.4649165981. The cubic root of 772532280 is about 917.5693082692.

The spelling of 772532280 in words is "seven hundred seventy-two million, five hundred thirty-two thousand, two hundred eighty".