1492840 has 16 divisors (see below), whose sum is σ = 3358980. Its totient is φ = 597120.

The previous prime is 1492823. The next prime is 1492859. The reversal of 1492840 is 482941.

It can be written as a sum of positive squares in 2 ways, for example, as 1473796 + 19044 = 1214^2 + 138^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1492799 and 1492808.

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 3 ways as a sum of consecutive naturals, for example, 18621 + ... + 18700.

2^1492840 is an apocalyptic number.

1492840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1492840 is an abundant number, since it is smaller than the sum of its proper divisors (1866140).

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

1492840 is a wasteful number, since it uses less digits than its factorization.

1492840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37332 (or 37328 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 1492840 is about 1221.8183170996. The cubic root of 1492840 is about 114.2889969295.

It can be divided in two parts, 1492 and 840, that added together give a palindrome (2332).

The spelling of 1492840 in words is "one million, four hundred ninety-two thousand, eight hundred forty".