1542804 has 24 divisors (see below), whose sum is σ = 3645600. Its totient is φ = 507744.

The previous prime is 1542727. The next prime is 1542811. The reversal of 1542804 is 4082451.

1542804 = T₄₀₅ + T₄₀₆ + ... + T₄₂₂.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 222 + ... + 1770.

It is an arithmetic number, because the mean of its divisors is an integer number (151900).

2^1542804 is an apocalyptic number.

It is an amenable number.

1542804 is an abundant number, since it is smaller than the sum of its proper divisors (2102796).

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

1542804 is a wasteful number, since it uses less digits than its factorization.

1542804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1639 (or 1637 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 1542804 is about 1242.0966145997. The cubic root of 1542804 is about 115.5500804167.

It can be divided in two parts, 1542 and 804, that added together give a triangular number (2346 = T₆₈).

The spelling of 1542804 in words is "one million, five hundred forty-two thousand, eight hundred four".