1542333642 has 8 divisors (see below), whose sum is σ = 3084667296. Its totient is φ = 514111212.

The previous prime is 1542333587. The next prime is 1542333643. The reversal of 1542333642 is 2463332451.

It is a happy number.

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

1542333642 is an admirable number.

It is a super-3 number, since 3×1542333642³ (a number of 29 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1542333643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128527798 + ... + 128527809.

It is an arithmetic number, because the mean of its divisors is an integer number (385583412).

Almost surely, 2^1542333642 is an apocalyptic number.

1542333642 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.

1542333642 is a wasteful number, since it uses less digits than its factorization.

1542333642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257055612.

The product of its digits is 51840, while the sum is 33.

The square root of 1542333642 is about 39272.5558373783. Note that the first 3 decimals coincide. The cubic root of 1542333642 is about 1155.3833655530.

The spelling of 1542333642 in words is "one billion, five hundred forty-two million, three hundred thirty-three thousand, six hundred forty-two".