154040040 has 192 divisors, whose sum is σ = 624274560. Its totient is φ = 32002560.

The previous prime is 154040017. The next prime is 154040057. The reversal of 154040040 is 40040451.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 154039995 and 154040022.

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, 24942 + ... + 30498.

It is an arithmetic number, because the mean of its divisors is an integer number (3251430).

Almost surely, 2^154040040 is an apocalyptic number.

154040040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 154040040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (312137280).

154040040 is an abundant number, since it is smaller than the sum of its proper divisors (470234520).

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

154040040 is a wasteful number, since it uses less digits than its factorization.

154040040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5592 (or 5585 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 154040040 is about 12411.2867987167. The cubic root of 154040040 is about 536.0572913440.

Adding to 154040040 its reverse (40040451), we get a palindrome (194080491).

The spelling of 154040040 in words is "one hundred fifty-four million, forty thousand, forty".