1550404436 has 12 divisors (see below), whose sum is σ = 3100808928. Its totient is φ = 664459032.

The previous prime is 1550404433. The next prime is 1550404459. The reversal of 1550404436 is 6344040551.

1550404436 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1550404433) 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, 27685766 + ... + 27685821.

It is an arithmetic number, because the mean of its divisors is an integer number (258400744).

Almost surely, 2^1550404436 is an apocalyptic number.

It is an amenable number.

1550404436 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.

1550404436 is a wasteful number, since it uses less digits than its factorization.

1550404436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55371598 (or 55371596 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 1550404436 is about 39375.1753773872. The cubic root of 1550404436 is about 1157.3951747611.

Adding to 1550404436 its reverse (6344040551), we get a palindrome (7894444987).

The spelling of 1550404436 in words is "one billion, five hundred fifty million, four hundred four thousand, four hundred thirty-six".