770306404 has 48 divisors (see below), whose sum is σ = 1586687872. Its totient is φ = 320308992.

The previous prime is 770306387. The next prime is 770306413. The reversal of 770306404 is 404603077.

It is a super-2 number, since 2×770306404² = 1186743912086822432, which contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 472639 + ... + 474265.

Almost surely, 2^770306404 is an apocalyptic number.

770306404 is a gapful number since it is divisible by the number (74) 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 770306404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (793343936).

770306404 is an abundant number, since it is smaller than the sum of its proper divisors (816381468).

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

770306404 is a wasteful number, since it uses less digits than its factorization.

770306404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2132 (or 2130 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 31.

The square root of 770306404 is about 27754.3943187381. The cubic root of 770306404 is about 916.6872047997.

The spelling of 770306404 in words is "seven hundred seventy million, three hundred six thousand, four hundred four".