1542004 has 6 divisors (see below), whose sum is σ = 2698514. Its totient is φ = 771000.

The previous prime is 1541999. The next prime is 1542007. The reversal of 1542004 is 4002451.

It can be written as a sum of positive squares in only one way, i.e., 1205604 + 336400 = 1098^2 + 580^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1542007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192747 + ... + 192754.

2^1542004 is an apocalyptic number.

It is an amenable number.

1542004 is a deficient number, since it is larger than the sum of its proper divisors (1156510).

1542004 is a wasteful number, since it uses less digits than its factorization.

1542004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385505 (or 385503 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 1542004 is about 1241.7745367014. The cubic root of 1542004 is about 115.5301046568.

Adding to 1542004 its reverse (4002451), we get a palindrome (5544455).

The spelling of 1542004 in words is "one million, five hundred forty-two thousand, four".