770155320 has 384 divisors, whose sum is σ = 2757888000. Its totient is φ = 171494400.

The previous prime is 770155319. The next prime is 770155361. The reversal of 770155320 is 23551077.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 13053451 + ... + 13053509.

It is an arithmetic number, because the mean of its divisors is an integer number (7182000).

Almost surely, 2^770155320 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 770155320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1378944000).

770155320 is an abundant number, since it is smaller than the sum of its proper divisors (1987732680).

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

770155320 is a wasteful number, since it uses less digits than its factorization.

770155320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155 (or 140 counting only the distinct ones).

The product of its (nonzero) digits is 7350, while the sum is 30.

The square root of 770155320 is about 27751.6723820385. The cubic root of 770155320 is about 916.6272694179.

The spelling of 770155320 in words is "seven hundred seventy million, one hundred fifty-five thousand, three hundred twenty".