1942540 has 12 divisors (see below), whose sum is σ = 4079376. Its totient is φ = 777008.

The previous prime is 1942529. The next prime is 1942543. The reversal of 1942540 is 452491.

It is not an unprimeable number, because it can be changed into a prime (1942543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48544 + ... + 48583.

It is an arithmetic number, because the mean of its divisors is an integer number (339948).

2^1942540 is an apocalyptic number.

1942540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1942540 is an abundant number, since it is smaller than the sum of its proper divisors (2136836).

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

1942540 is a wasteful number, since it uses less digits than its factorization.

1942540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97136 (or 97134 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 1942540 is about 1393.7503363228. The cubic root of 1942540 is about 124.7737775007.

The spelling of 1942540 in words is "one million, nine hundred forty-two thousand, five hundred forty".