1494220 has 48 divisors (see below), whose sum is σ = 3866688. Its totient is φ = 472320.

The previous prime is 1494197. The next prime is 1494247. The reversal of 1494220 is 224941.

1494220 = T₄₅₅ + T₄₅₆ + ... + T₄₆₈.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 1494191 and 1494200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1410 + ... + 2230.

It is an arithmetic number, because the mean of its divisors is an integer number (80556).

2^1494220 is an apocalyptic number.

1494220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1494220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1933344).

1494220 is an abundant number, since it is smaller than the sum of its proper divisors (2372468).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1494220 is a wasteful number, since it uses less digits than its factorization.

1494220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850 (or 848 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 1494220 is about 1222.3829187288. The cubic root of 1494220 is about 114.3242028104.

The spelling of 1494220 in words is "one million, four hundred ninety-four thousand, two hundred twenty".