6435381 has 8 divisors (see below), whose sum is σ = 8763264. Its totient is φ = 4198880.

The previous prime is 6435379. The next prime is 6435413. The reversal of 6435381 is 1835346.

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

It is a cyclic number.

It is not a de Polignac number, because 6435381 - 2¹ = 6435379 is a prime.

It is a super-2 number, since 2×6435381² = 82828257230322, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6435311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22680 + ... + 22961.

It is an arithmetic number, because the mean of its divisors is an integer number (1095408).

Almost surely, 2^6435381 is an apocalyptic number.

It is an amenable number.

6435381 is a deficient number, since it is larger than the sum of its proper divisors (2327883).

6435381 is a wasteful number, since it uses less digits than its factorization.

6435381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45691.

The product of its digits is 8640, while the sum is 30.

The square root of 6435381 is about 2536.8052743559. The cubic root of 6435381 is about 186.0050582507.

The spelling of 6435381 in words is "six million, four hundred thirty-five thousand, three hundred eighty-one".