1540956 has 12 divisors (see below), whose sum is σ = 3595592. Its totient is φ = 513648.

The previous prime is 1540949. The next prime is 1540961. The reversal of 1540956 is 6590451.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

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, 64195 + ... + 64218.

2^1540956 is an apocalyptic number.

It is an amenable number.

1540956 is an abundant number, since it is smaller than the sum of its proper divisors (2054636).

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

1540956 is a wasteful number, since it uses less digits than its factorization.

1540956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128420 (or 128418 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 1540956 is about 1241.3524882160. The cubic root of 1540956 is about 115.5039259549.

The spelling of 1540956 in words is "one million, five hundred forty thousand, nine hundred fifty-six".