64230381 has 16 divisors (see below), whose sum is σ = 95352000. Its totient is φ = 42732144.

The previous prime is 64230379. The next prime is 64230451. The reversal of 64230381 is 18303246.

It is a happy number.

It is not a de Polignac number, because 64230381 - 2¹ = 64230379 is a prime.

It is a super-2 number, since 2×64230381² = 8251083686810322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64230311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12595 + ... + 16943.

It is an arithmetic number, because the mean of its divisors is an integer number (5959500).

Almost surely, 2^64230381 is an apocalyptic number.

It is an amenable number.

64230381 is a deficient number, since it is larger than the sum of its proper divisors (31121619).

64230381 is a wasteful number, since it uses less digits than its factorization.

64230381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4905 (or 4899 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 64230381 is about 8014.3858779073. The cubic root of 64230381 is about 400.4793856606.

The spelling of 64230381 in words is "sixty-four million, two hundred thirty thousand, three hundred eighty-one".