64406402 has 8 divisors (see below), whose sum is σ = 96966912. Its totient is φ = 32084100.

The previous prime is 64406393. The next prime is 64406411. The reversal of 64406402 is 20460446.

64406402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (64406393) and next prime (64406411).

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58874 + ... + 59957.

It is an arithmetic number, because the mean of its divisors is an integer number (12120864).

Almost surely, 2^64406402 is an apocalyptic number.

64406402 is a deficient number, since it is larger than the sum of its proper divisors (32560510).

64406402 is a wasteful number, since it uses less digits than its factorization.

64406402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119104.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 64406402 is about 8025.3599296231. The cubic root of 64406402 is about 400.8448850002.

Adding to 64406402 its reverse (20460446), we get a palindrome (84866848).

The spelling of 64406402 in words is "sixty-four million, four hundred six thousand, four hundred two".