1138478 has 8 divisors (see below), whose sum is σ = 1863000. Its totient is φ = 517480.

The previous prime is 1138457. The next prime is 1138483. The reversal of 1138478 is 8748311.

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

It is a super-2 number, since 2×1138478² = 2592264312968, which contains 22 as substring.

It is a Curzon number.

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, 25853 + ... + 25896.

It is an arithmetic number, because the mean of its divisors is an integer number (232875).

2^1138478 is an apocalyptic number.

1138478 is a deficient number, since it is larger than the sum of its proper divisors (724522).

1138478 is a wasteful number, since it uses less digits than its factorization.

1138478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51762.

The product of its digits is 5376, while the sum is 32.

The square root of 1138478 is about 1066.9948453484. The cubic root of 1138478 is about 104.4178822683.

The spelling of 1138478 in words is "one million, one hundred thirty-eight thousand, four hundred seventy-eight".