776420040 has 128 divisors (see below), whose sum is σ = 2600294400. Its totient is φ = 183832320.

The previous prime is 776420033. The next prime is 776420089. The reversal of 776420040 is 40024677.

776420040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49921 + ... + 63599.

It is an arithmetic number, because the mean of its divisors is an integer number (20314800).

Almost surely, 2^776420040 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 776420040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1300147200).

776420040 is an abundant number, since it is smaller than the sum of its proper divisors (1823874360).

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

776420040 is a wasteful number, since it uses less digits than its factorization.

776420040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13747 (or 13743 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 30.

The square root of 776420040 is about 27864.3148130364. The cubic root of 776420040 is about 919.1059525003.

The spelling of 776420040 in words is "seven hundred seventy-six million, four hundred twenty thousand, forty".