154042434 has 96 divisors (see below), whose sum is σ = 414086400. Its totient is φ = 40300416.

The previous prime is 154042429. The next prime is 154042463. The reversal of 154042434 is 434240451.

It is a happy number.

154042434 is a `hidden beast` number, since 15 + 404 + 243 + 4 = 666.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 154042398 and 154042407.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 256867 + ... + 257465.

It is an arithmetic number, because the mean of its divisors is an integer number (4313400).

Almost surely, 2^154042434 is an apocalyptic number.

154042434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 154042434, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (207043200).

154042434 is an abundant number, since it is smaller than the sum of its proper divisors (260043966).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

154042434 is a wasteful number, since it uses less digits than its factorization.

154042434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784 (or 781 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 154042434 is about 12411.3832428138. The cubic root of 154042434 is about 536.0600683590.

Adding to 154042434 its reverse (434240451), we get a palindrome (588282885).

The spelling of 154042434 in words is "one hundred fifty-four million, forty-two thousand, four hundred thirty-four".