1540252 has 12 divisors (see below), whose sum is σ = 3080560. Its totient is φ = 660096.

The previous prime is 1540249. The next prime is 1540289. The reversal of 1540252 is 2520451.

1540252 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27477 + ... + 27532.

2^1540252 is an apocalyptic number.

It is an amenable number.

1540252 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1540252 is a wasteful number, since it uses less digits than its factorization.

1540252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55020 (or 55018 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 1540252 is about 1241.0688941392. The cubic root of 1540252 is about 115.4863335966.

The spelling of 1540252 in words is "one million, five hundred forty thousand, two hundred fifty-two".