1540828 has 24 divisors (see below), whose sum is σ = 2872800. Its totient is φ = 721728.

The previous prime is 1540823. The next prime is 1540831. The reversal of 1540828 is 8280451.

It is a junction number, because it is equal to n+sod(n) for n = 1540796 and 1540805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1540823) 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, 4113 + ... + 4471.

It is an arithmetic number, because the mean of its divisors is an integer number (119700).

2^1540828 is an apocalyptic number.

It is an amenable number.

1540828 is a deficient number, since it is larger than the sum of its proper divisors (1331972).

1540828 is a wasteful number, since it uses less digits than its factorization.

1540828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429 (or 427 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 28.

The square root of 1540828 is about 1241.3009304758. The cubic root of 1540828 is about 115.5007277429.

The spelling of 1540828 in words is "one million, five hundred forty thousand, eight hundred twenty-eight".