776400130 has 48 divisors (see below), whose sum is σ = 1551570552. Its totient is φ = 279488000.

The previous prime is 776400103. The next prime is 776400137. The reversal of 776400130 is 31004677.

It can be written as a sum of positive squares in 4 ways, for example, as 748405449 + 27994681 = 27357^2 + 5291^2 .

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (776400137) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 119034 + ... + 125386.

Almost surely, 2^776400130 is an apocalyptic number.

776400130 is a deficient number, since it is larger than the sum of its proper divisors (775170422).

776400130 is a wasteful number, since it uses less digits than its factorization.

776400130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6483 (or 6472 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 28.

The square root of 776400130 is about 27863.9575437517. The cubic root of 776400130 is about 919.0980961189.

The spelling of 776400130 in words is "seven hundred seventy-six million, four hundred thousand, one hundred thirty".