1542642 has 8 divisors (see below), whose sum is σ = 3085296. Its totient is φ = 514212.

The previous prime is 1542599. The next prime is 1542661. The reversal of 1542642 is 2462451.

It is a sphenic number, since it is the product of 3 distinct primes.

1542642 is an admirable 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, 128548 + ... + 128559.

It is an arithmetic number, because the mean of its divisors is an integer number (385662).

2^1542642 is an apocalyptic number.

1542642 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1542642 is a wasteful number, since it uses less digits than its factorization.

1542642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257112.

The product of its digits is 1920, while the sum is 24.

The square root of 1542642 is about 1242.0314005692. The cubic root of 1542642 is about 115.5460358830.

The spelling of 1542642 in words is "one million, five hundred forty-two thousand, six hundred forty-two".