234021542 has 16 divisors (see below), whose sum is σ = 366950400. Its totient is φ = 111800520.

The previous prime is 234021497. The next prime is 234021547. The reversal of 234021542 is 245120432.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234021547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18992 + ... + 28787.

It is an arithmetic number, because the mean of its divisors is an integer number (22934400).

Almost surely, 2^234021542 is an apocalyptic number.

234021542 is a deficient number, since it is larger than the sum of its proper divisors (132928858).

234021542 is a wasteful number, since it uses less digits than its factorization.

234021542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47891.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 234021542 is about 15297.7626468709. The cubic root of 234021542 is about 616.2429240205.

Adding to 234021542 its reverse (245120432), we get a palindrome (479141974).

The spelling of 234021542 in words is "two hundred thirty-four million, twenty-one thousand, five hundred forty-two".