46781438 has 8 divisors (see below), whose sum is σ = 76551480. Its totient is φ = 21264280.

The previous prime is 46781417. The next prime is 46781479. The reversal of 46781438 is 83418764.

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

It is a junction number, because it is equal to n+sod(n) for n = 46781395 and 46781404.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1063193 + ... + 1063236.

It is an arithmetic number, because the mean of its divisors is an integer number (9568935).

Almost surely, 2^46781438 is an apocalyptic number.

46781438 is a deficient number, since it is larger than the sum of its proper divisors (29770042).

46781438 is a wasteful number, since it uses less digits than its factorization.

46781438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2126442.

The product of its digits is 129024, while the sum is 41.

The square root of 46781438 is about 6839.6957534674. The cubic root of 46781438 is about 360.3223398952.

It can be divided in two parts, 4678 and 1438, that added together give a palindrome (6116).

The spelling of 46781438 in words is "forty-six million, seven hundred eighty-one thousand, four hundred thirty-eight".