154240938 has 48 divisors (see below), whose sum is σ = 346770216. Its totient is φ = 49507200.

The previous prime is 154240909. The next prime is 154240951. The reversal of 154240938 is 839042451.

It can be written as a sum of positive squares in 4 ways, for example, as 154181889 + 59049 = 12417^2 + 243^2 .

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 66120 + ... + 68412.

Almost surely, 2^154240938 is an apocalyptic number.

154240938 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 154240938, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173385108).

154240938 is an abundant number, since it is smaller than the sum of its proper divisors (192529278).

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

154240938 is a wasteful number, since it uses less digits than its factorization.

154240938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2439 (or 2436 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 154240938 is about 12419.3775206328. The cubic root of 154240938 is about 536.2902308970.

The spelling of 154240938 in words is "one hundred fifty-four million, two hundred forty thousand, nine hundred thirty-eight".