1542454042 has 16 divisors (see below), whose sum is σ = 2395563264. Its totient is φ = 744084000.

The previous prime is 1542454033. The next prime is 1542454057. The reversal of 1542454042 is 2404542451.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a junction number, because it is equal to n+sod(n) for n = 1542453995 and 1542454013.

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, 17059 + ... + 58102.

It is an arithmetic number, because the mean of its divisors is an integer number (149722704).

Almost surely, 2^1542454042 is an apocalyptic number.

1542454042 is a deficient number, since it is larger than the sum of its proper divisors (853109222).

1542454042 is a wasteful number, since it uses less digits than its factorization.

1542454042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75525.

The product of its (nonzero) digits is 25600, while the sum is 31.

The square root of 1542454042 is about 39274.0886845258. The cubic root of 1542454042 is about 1155.4134292033.

Adding to 1542454042 its reverse (2404542451), we get a palindrome (3946996493).

The spelling of 1542454042 in words is "one billion, five hundred forty-two million, four hundred fifty-four thousand, forty-two".