478151438 has 8 divisors (see below), whose sum is σ = 720387432. Its totient is φ = 238022296.

The previous prime is 478151437. The next prime is 478151461. The reversal of 478151438 is 834151874.

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

It is a super-2 number, since 2×478151438² = 457257595322935688, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 478151395 and 478151404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (478151437) 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, 526145 + ... + 527052.

It is an arithmetic number, because the mean of its divisors is an integer number (90048429).

Almost surely, 2^478151438 is an apocalyptic number.

478151438 is a deficient number, since it is larger than the sum of its proper divisors (242235994).

478151438 is a wasteful number, since it uses less digits than its factorization.

478151438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1053426.

The product of its digits is 107520, while the sum is 41.

The square root of 478151438 is about 21866.6741412589. The cubic root of 478151438 is about 781.9671135626.

The spelling of 478151438 in words is "four hundred seventy-eight million, one hundred fifty-one thousand, four hundred thirty-eight".