155304436 has 12 divisors (see below), whose sum is σ = 310608928. Its totient is φ = 66559032.

The previous prime is 155304431. The next prime is 155304437. The reversal of 155304436 is 634403551.

155304436 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 155304398 and 155304407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155304431) 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, 2773266 + ... + 2773321.

Almost surely, 2^155304436 is an apocalyptic number.

It is an amenable number.

155304436 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

155304436 is a wasteful number, since it uses less digits than its factorization.

155304436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5546598 (or 5546596 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 155304436 is about 12462.1200443584. The cubic root of 155304436 is about 537.5199903148.

Adding to 155304436 its reverse (634403551), we get a palindrome (789707987).

The spelling of 155304436 in words is "one hundred fifty-five million, three hundred four thousand, four hundred thirty-six".