402023764 has 12 divisors (see below), whose sum is σ = 704065824. Its totient is φ = 200862104.

The previous prime is 402023761. The next prime is 402023767. The reversal of 402023764 is 467320204.

It is an interprime number because it is at equal distance from previous prime (402023761) and next prime (402023767).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402023761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31294 + ... + 42229.

It is an arithmetic number, because the mean of its divisors is an integer number (58672152).

Almost surely, 2^402023764 is an apocalyptic number.

It is an amenable number.

402023764 is a deficient number, since it is larger than the sum of its proper divisors (302042060).

402023764 is a wasteful number, since it uses less digits than its factorization.

402023764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74894 (or 74892 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 28.

The square root of 402023764 is about 20050.5302673022. The cubic root of 402023764 is about 738.0468117084.

Adding to 402023764 its reverse (467320204), we get a palindrome (869343968).

The spelling of 402023764 in words is "four hundred two million, twenty-three thousand, seven hundred sixty-four".