402712704 has 96 divisors (see below), whose sum is σ = 1209312000. Its totient is φ = 128392704.

The previous prime is 402712703. The next prime is 402712729. The reversal of 402712704 is 407217204.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is not an unprimeable number, because it can be changed into a prime (402712703) 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 11 ways as a sum of consecutive naturals, for example, 18897 + ... + 34095.

It is an arithmetic number, because the mean of its divisors is an integer number (12597000).

Almost surely, 2^402712704 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 402712704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (604656000).

402712704 is an abundant number, since it is smaller than the sum of its proper divisors (806599296).

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

402712704 is a wasteful number, since it uses less digits than its factorization.

402712704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15242 (or 15227 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 27.

The square root of 402712704 is about 20067.7030075692. The cubic root of 402712704 is about 738.4681630816.

Adding to 402712704 its reverse (407217204), we get a palindrome (809929908).

The spelling of 402712704 in words is "four hundred two million, seven hundred twelve thousand, seven hundred four".