154243040 has 96 divisors (see below), whose sum is σ = 441008064. Its totient is φ = 49766400.

The previous prime is 154243031. The next prime is 154243093. The reversal of 154243040 is 40342451.

It is a junction number, because it is equal to n+sod(n) for n = 154242997 and 154243015.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 14990 + ... + 23090.

It is an arithmetic number, because the mean of its divisors is an integer number (4593834).

Almost surely, 2^154243040 is an apocalyptic number.

154243040 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 154243040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220504032).

154243040 is an abundant number, since it is smaller than the sum of its proper divisors (286765024).

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

154243040 is a wasteful number, since it uses less digits than its factorization.

154243040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8140 (or 8132 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 154243040 is about 12419.4621461640. The cubic root of 154243040 is about 536.2926670789.

Adding to 154243040 its reverse (40342451), we get a palindrome (194585491).

The spelling of 154243040 in words is "one hundred fifty-four million, two hundred forty-three thousand, forty".