1540412 has 12 divisors (see below), whose sum is σ = 2726640. Its totient is φ = 761376.

The previous prime is 1540403. The next prime is 1540423. The reversal of 1540412 is 2140451.

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, 1808 + ... + 2519.

It is an arithmetic number, because the mean of its divisors is an integer number (227220).

2^1540412 is an apocalyptic number.

It is an amenable number.

1540412 is a deficient number, since it is larger than the sum of its proper divisors (1186228).

1540412 is a wasteful number, since it uses less digits than its factorization.

1540412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4420 (or 4418 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 1540412 is about 1241.1333530286. The cubic root of 1540412 is about 115.4903323305.

Adding to 1540412 its reverse (2140451), we get a palindrome (3680863).

The spelling of 1540412 in words is "one million, five hundred forty thousand, four hundred twelve".