1550900736 has 640 divisors, whose sum is σ = 6033899520. Its totient is φ = 381542400.

The previous prime is 1550900719. The next prime is 1550900749. The reversal of 1550900736 is 6370090551.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1550900736.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 32997865 + ... + 32997911.

It is an arithmetic number, because the mean of its divisors is an integer number (9427968).

Almost surely, 2^1550900736 is an apocalyptic number.

1550900736 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1550900736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3016949760).

1550900736 is an abundant number, since it is smaller than the sum of its proper divisors (4482998784).

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

1550900736 is a wasteful number, since it uses less digits than its factorization.

1550900736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123 (or 101 counting only the distinct ones).

The product of its (nonzero) digits is 28350, while the sum is 36.

The square root of 1550900736 is about 39381.4770672711. The cubic root of 1550900736 is about 1157.5186595179.

The spelling of 1550900736 in words is "one billion, five hundred fifty million, nine hundred thousand, seven hundred thirty-six".