254521342 has 16 divisors (see below), whose sum is σ = 400847760. Its totient is φ = 121036608.

The previous prime is 254521301. The next prime is 254521349. The reversal of 254521342 is 243125452.

It is a super-2 number, since 2×254521342² = 129562227066961928, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 254521342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254521349) 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, 28863 + ... + 36634.

It is an arithmetic number, because the mean of its divisors is an integer number (25052985).

Almost surely, 2^254521342 is an apocalyptic number.

254521342 is a deficient number, since it is larger than the sum of its proper divisors (146326418).

254521342 is a wasteful number, since it uses less digits than its factorization.

254521342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65595.

The product of its digits is 9600, while the sum is 28.

The square root of 254521342 is about 15953.7250195683. The cubic root of 254521342 is about 633.7355473416.

Adding to 254521342 its reverse (243125452), we get a palindrome (497646794).

The spelling of 254521342 in words is "two hundred fifty-four million, five hundred twenty-one thousand, three hundred forty-two".