1320498 has 12 divisors (see below), whose sum is σ = 2861118. Its totient is φ = 440160.

The previous prime is 1320437. The next prime is 1320533. The reversal of 1320498 is 8940231.

It can be written as a sum of positive squares in only one way, i.e., 927369 + 393129 = 963^2 + 627^2 .

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 5 ways as a sum of consecutive naturals, for example, 36663 + ... + 36698.

2^1320498 is an apocalyptic number.

1320498 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1320498 is an abundant number, since it is smaller than the sum of its proper divisors (1540620).

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

1320498 is a wasteful number, since it uses less digits than its factorization.

1320498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73369 (or 73366 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 1320498 is about 1149.1292355519. The cubic root of 1320498 is about 109.7099244337.

The spelling of 1320498 in words is "one million, three hundred twenty thousand, four hundred ninety-eight".