770443380 has 96 divisors (see below), whose sum is σ = 2739367680. Its totient is φ = 176100480.

The previous prime is 770443367. The next prime is 770443381. The reversal of 770443380 is 83344077.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (770443381) 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, 98131 + ... + 105690.

It is an arithmetic number, because the mean of its divisors is an integer number (28535080).

Almost surely, 2^770443380 is an apocalyptic number.

770443380 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

770443380 is an abundant number, since it is smaller than the sum of its proper divisors (1968924300).

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

770443380 is a wasteful number, since it uses less digits than its factorization.

770443380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203846 (or 203838 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 36.

The square root of 770443380 is about 27756.8618543235. The cubic root of 770443380 is about 916.7415367314.

The spelling of 770443380 in words is "seven hundred seventy million, four hundred forty-three thousand, three hundred eighty".