154435442 has 32 divisors (see below), whose sum is σ = 270577152. Its totient is φ = 64744704.

The previous prime is 154435433. The next prime is 154435493. The reversal of 154435442 is 244534451.

It is a super-3 number, since 3×154435442³ (a number of 26 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 154435399 and 154435408.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 139463 + ... + 140565.

It is an arithmetic number, because the mean of its divisors is an integer number (8455536).

Almost surely, 2^154435442 is an apocalyptic number.

154435442 is a deficient number, since it is larger than the sum of its proper divisors (116141710).

154435442 is a wasteful number, since it uses less digits than its factorization.

154435442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1322.

The product of its digits is 38400, while the sum is 32.

The square root of 154435442 is about 12427.2057197103. The cubic root of 154435442 is about 536.5155640251.

Adding to 154435442 its reverse (244534451), we get a palindrome (398969893).

Subtracting 154435442 from its reverse (244534451), we obtain a palindrome (90099009).

The spelling of 154435442 in words is "one hundred fifty-four million, four hundred thirty-five thousand, four hundred forty-two".