64401002 has 8 divisors (see below), whose sum is σ = 96911076. Its totient is φ = 32097312.

The previous prime is 64400969. The next prime is 64401017. The reversal of 64401002 is 20010446.

64401002 is nontrivially palindromic in base 14.

It can be written as a sum of positive squares in 2 ways, for example, as 61011721 + 3389281 = 7811^2 + 1841^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50813 + ... + 52064.

Almost surely, 2^64401002 is an apocalyptic number.

64401002 is a deficient number, since it is larger than the sum of its proper divisors (32510074).

64401002 is a wasteful number, since it uses less digits than its factorization.

64401002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103192.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 64401002 is about 8025.0234890622. The cubic root of 64401002 is about 400.8336820617.

Adding to 64401002 its reverse (20010446), we get a palindrome (84411448).

The spelling of 64401002 in words is "sixty-four million, four hundred one thousand, two".