1122478 has 8 divisors (see below), whose sum is σ = 1924272. Its totient is φ = 481056.

The previous prime is 1122467. The next prime is 1122481. The reversal of 1122478 is 8742211.

It is a happy number.

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

It is a plaindrome in base 10.

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, 40075 + ... + 40102.

It is an arithmetic number, because the mean of its divisors is an integer number (240534).

2^1122478 is an apocalyptic number.

1122478 is a deficient number, since it is larger than the sum of its proper divisors (801794).

1122478 is an equidigital number, since it uses as much as digits as its factorization.

1122478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80186.

The product of its digits is 896, while the sum is 25.

The square root of 1122478 is about 1059.4706225281. The cubic root of 1122478 is about 103.9264149098.

Adding to 1122478 its reverse (8742211), we get a palindrome (9864689).

It can be divided in two parts, 1122 and 478, that added together give a square (1600 = 40²).

The spelling of 1122478 in words is "one million, one hundred twenty-two thousand, four hundred seventy-eight".