240042154 has 8 divisors (see below), whose sum is σ = 392796288. Its totient is φ = 109110060.

The previous prime is 240042139. The next prime is 240042157. The reversal of 240042154 is 451240042.

It is a happy number.

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

It is a Harshad number since it is a multiple of its sum of digits (22), and also a Moran number because the ratio is a prime number: 10911007 = 240042154 / (2 + 4 + 0 + 0 + 4 + 2 + 1 + 5 + 4).

It is not an unprimeable number, because it can be changed into a prime (240042157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5455482 + ... + 5455525.

It is an arithmetic number, because the mean of its divisors is an integer number (49099536).

Almost surely, 2^240042154 is an apocalyptic number.

240042154 is a deficient number, since it is larger than the sum of its proper divisors (152754134).

240042154 is a wasteful number, since it uses less digits than its factorization.

240042154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10911020.

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 240042154 is about 15493.2938395940. The cubic root of 240042154 is about 621.4828830272.

Adding to 240042154 its reverse (451240042), we get a palindrome (691282196).

The spelling of 240042154 in words is "two hundred forty million, forty-two thousand, one hundred fifty-four".