1542404 has 12 divisors (see below), whose sum is σ = 2737728. Its totient is φ = 760200.

The previous prime is 1542383. The next prime is 1542421. The reversal of 1542404 is 4042451.

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, 2432 + ... + 2999.

It is an arithmetic number, because the mean of its divisors is an integer number (228144).

2^1542404 is an apocalyptic number.

It is an amenable number.

1542404 is a deficient number, since it is larger than the sum of its proper divisors (1195324).

1542404 is a wasteful number, since it uses less digits than its factorization.

1542404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5506 (or 5504 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 1542404 is about 1241.9355860913. The cubic root of 1542404 is about 115.5400934001.

Adding to 1542404 its reverse (4042451), we get a palindrome (5584855).

The spelling of 1542404 in words is "one million, five hundred forty-two thousand, four hundred four".