64401041 has 4 divisors (see below), whose sum is σ = 64892784. Its totient is φ = 63909300.

The previous prime is 64401031. The next prime is 64401079. The reversal of 64401041 is 14010446.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64401041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64401031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 245675 + ... + 245936.

It is an arithmetic number, because the mean of its divisors is an integer number (16223196).

Almost surely, 2^64401041 is an apocalyptic number.

It is an amenable number.

64401041 is a deficient number, since it is larger than the sum of its proper divisors (491743).

64401041 is a wasteful number, since it uses less digits than its factorization.

64401041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491742.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 64401041 is about 8025.0259189613. The cubic root of 64401041 is about 400.8337629741.

Adding to 64401041 its reverse (14010446), we get a palindrome (78411487).

The spelling of 64401041 in words is "sixty-four million, four hundred one thousand, forty-one".