154240340 has 24 divisors (see below), whose sum is σ = 324174312. Its totient is φ = 61644800.

The previous prime is 154240327. The next prime is 154240343. The reversal of 154240340 is 43042451.

It can be written as a sum of positive squares in 4 ways, for example, as 29203216 + 125037124 = 5404^2 + 11182^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154240343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29612 + ... + 34428.

It is an arithmetic number, because the mean of its divisors is an integer number (13507263).

Almost surely, 2^154240340 is an apocalyptic number.

154240340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

154240340 is an abundant number, since it is smaller than the sum of its proper divisors (169933972).

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

154240340 is a wasteful number, since it uses less digits than its factorization.

154240340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6427 (or 6425 counting only the distinct ones).

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

The square root of 154240340 is about 12419.3534453288. The cubic root of 154240340 is about 536.2895378212.

Adding to 154240340 its reverse (43042451), we get a palindrome (197282791).

The spelling of 154240340 in words is "one hundred fifty-four million, two hundred forty thousand, three hundred forty".