154240436 has 18 divisors (see below), whose sum is σ = 313989858. Its totient is φ = 66102960.

The previous prime is 154240421. The next prime is 154240447. The reversal of 154240436 is 634042451.

It can be written as a sum of positive squares in only one way, i.e., 150062500 + 4177936 = 12250^2 + 2044^2 .

It is a super-2 number, since 2×154240436² = 47580224194940192, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 154240399 and 154240408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 393275 + ... + 393666.

It is an arithmetic number, because the mean of its divisors is an integer number (17443881).

Almost surely, 2^154240436 is an apocalyptic number.

It is an amenable number.

154240436 is an abundant number, since it is smaller than the sum of its proper divisors (159749422).

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

154240436 is a wasteful number, since it uses less digits than its factorization.

154240436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 786959 (or 786950 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 154240436 is about 12419.3573102637. The cubic root of 154240436 is about 536.2896490843.

Adding to 154240436 its reverse (634042451), we get a palindrome (788282887).

The spelling of 154240436 in words is "one hundred fifty-four million, two hundred forty thousand, four hundred thirty-six".