775660032 has 240 divisors, whose sum is σ = 2591709120. Its totient is φ = 218750976.

The previous prime is 775660031. The next prime is 775660033. The reversal of 775660032 is 230066577.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (775660031) and next prime (775660033).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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

It is not an unprimeable number, because it can be changed into a prime (775660031) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4483498 + ... + 4483670.

It is an arithmetic number, because the mean of its divisors is an integer number (10798788).

Almost surely, 2^775660032 is an apocalyptic number.

775660032 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 775660032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1295854560).

775660032 is an abundant number, since it is smaller than the sum of its proper divisors (1816049088).

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

775660032 is a wasteful number, since it uses less digits than its factorization.

775660032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343 (or 324 counting only the distinct ones).

The product of its (nonzero) digits is 52920, while the sum is 36.

The square root of 775660032 is about 27850.6738159061. The cubic root of 775660032 is about 918.8059619945.

The spelling of 775660032 in words is "seven hundred seventy-five million, six hundred sixty thousand, thirty-two".