1373540 has 24 divisors (see below), whose sum is σ = 3296832. Its totient is φ = 470880.

The previous prime is 1373539. The next prime is 1373543. The reversal of 1373540 is 453731.

It is a happy number.

It is a super-2 number, since 2×1373540² = 3773224263200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1373543) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4766 + ... + 5045.

It is an arithmetic number, because the mean of its divisors is an integer number (137368).

2^1373540 is an apocalyptic number.

1373540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1373540 is an abundant number, since it is smaller than the sum of its proper divisors (1923292).

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

1373540 is a wasteful number, since it uses less digits than its factorization.

1373540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9827 (or 9825 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 1373540 is about 1171.9812285186. The cubic root of 1373540 is about 111.1596328817.

The spelling of 1373540 in words is "one million, three hundred seventy-three thousand, five hundred forty".