770440361 has 12 divisors (see below), whose sum is σ = 833182980. Its totient is φ = 711516960.

The previous prime is 770440351. The next prime is 770440369. The reversal of 770440361 is 163044077.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 244609600 + 525830761 = 15640^2 + 22931^2 .

It is not a de Polignac number, because 770440361 - 2²² = 766246057 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (770440369) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9770 + ... + 40451.

It is an arithmetic number, because the mean of its divisors is an integer number (69431915).

Almost surely, 2^770440361 is an apocalyptic number.

It is an amenable number.

770440361 is a deficient number, since it is larger than the sum of its proper divisors (62742619).

770440361 is a wasteful number, since it uses less digits than its factorization.

770440361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50296 (or 50273 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 770440361 is about 27756.8074713213. The cubic root of 770440361 is about 916.7403393056.

The spelling of 770440361 in words is "seven hundred seventy million, four hundred forty thousand, three hundred sixty-one".