400776714 has 64 divisors (see below), whose sum is σ = 973553280. Its totient is φ = 121461120.

The previous prime is 400776713. The next prime is 400776737. The reversal of 400776714 is 417677004.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (400776713) 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, 42774 + ... + 51294.

It is an arithmetic number, because the mean of its divisors is an integer number (15211770).

Almost surely, 2^400776714 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 400776714, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (486776640).

400776714 is an abundant number, since it is smaller than the sum of its proper divisors (572776566).

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

400776714 is a wasteful number, since it uses less digits than its factorization.

400776714 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8612 (or 8606 counting only the distinct ones).

The product of its (nonzero) digits is 32928, while the sum is 36.

The square root of 400776714 is about 20019.4084328184. The cubic root of 400776714 is about 737.2828978509.

The spelling of 400776714 in words is "four hundred million, seven hundred seventy-six thousand, seven hundred fourteen".