154216340 has 12 divisors (see below), whose sum is σ = 323854356. Its totient is φ = 61686528.

The previous prime is 154216291. The next prime is 154216343. The reversal of 154216340 is 43612451.

It can be written as a sum of positive squares in 2 ways, for example, as 77933584 + 76282756 = 8828^2 + 8734^2 .

It is a super-3 number, since 3×154216340³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154216343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3855389 + ... + 3855428.

It is an arithmetic number, because the mean of its divisors is an integer number (26987863).

Almost surely, 2^154216340 is an apocalyptic number.

154216340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

154216340 is an abundant number, since it is smaller than the sum of its proper divisors (169638016).

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

154216340 is a wasteful number, since it uses less digits than its factorization.

154216340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7710826 (or 7710824 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 154216340 is about 12418.3871738644. The cubic root of 154216340 is about 536.2617205923.

Adding to 154216340 its reverse (43612451), we get a palindrome (197828791).

The spelling of 154216340 in words is "one hundred fifty-four million, two hundred sixteen thousand, three hundred forty".