1542656 has 40 divisors (see below), whose sum is σ = 3240864. Its totient is φ = 732160.

The previous prime is 1542599. The next prime is 1542661. The reversal of 1542656 is 6562451.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11711 + ... + 11841.

2^1542656 is an apocalyptic number.

1542656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1542656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1620432).

1542656 is an abundant number, since it is smaller than the sum of its proper divisors (1698208).

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

1542656 is an equidigital number, since it uses as much as digits as its factorization.

1542656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172 (or 156 counting only the distinct ones).

The product of its digits is 7200, while the sum is 29.

The square root of 1542656 is about 1242.0370364848. The cubic root of 1542656 is about 115.5463854218.

The spelling of 1542656 in words is "one million, five hundred forty-two thousand, six hundred fifty-six".