1478347238 has 8 divisors (see below), whose sum is σ = 2217705480. Its totient is φ = 739112080.

The previous prime is 1478347207. The next prime is 1478347249. The reversal of 1478347238 is 8327438741.

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

It is a super-2 number, since 2×1478347238² = 4371021112204457288, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 1478347192 and 1478347201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10133 + ... + 55311.

It is an arithmetic number, because the mean of its divisors is an integer number (277213185).

Almost surely, 2^1478347238 is an apocalyptic number.

1478347238 is a deficient number, since it is larger than the sum of its proper divisors (739358242).

1478347238 is a wasteful number, since it uses less digits than its factorization.

1478347238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61542.

The product of its digits is 903168, while the sum is 47.

The square root of 1478347238 is about 38449.2813716980. The cubic root of 1478347238 is about 1139.1794747095.

The spelling of 1478347238 in words is "one billion, four hundred seventy-eight million, three hundred forty-seven thousand, two hundred thirty-eight".