402774016 has 48 divisors (see below), whose sum is σ = 810318600. Its totient is φ = 200146944.

The previous prime is 402774007. The next prime is 402774019. The reversal of 402774016 is 610477204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402774019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 394755 + ... + 395773.

Almost surely, 2^402774016 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 402774016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (405159300).

402774016 is an abundant number, since it is smaller than the sum of its proper divisors (407544584).

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

402774016 is a wasteful number, since it uses less digits than its factorization.

402774016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1234 (or 1214 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 402774016 is about 20069.2305781761. The cubic root of 402774016 is about 738.5056378223.

The spelling of 402774016 in words is "four hundred two million, seven hundred seventy-four thousand, sixteen".