1540746 has 12 divisors (see below), whose sum is σ = 3338322. Its totient is φ = 513576.

The previous prime is 1540711. The next prime is 1540751. The reversal of 1540746 is 6470451.

It can be written as a sum of positive squares in only one way, i.e., 1535121 + 5625 = 1239^2 + 75^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 42781 + ... + 42816.

2^1540746 is an apocalyptic number.

1540746 is an abundant number, since it is smaller than the sum of its proper divisors (1797576).

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

1540746 is a wasteful number, since it uses less digits than its factorization.

1540746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85605 (or 85602 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 1540746 is about 1241.2679001730. The cubic root of 1540746 is about 115.4986787953.

The spelling of 1540746 in words is "one million, five hundred forty thousand, seven hundred forty-six".