1040303550 has 144 divisors (see below), whose sum is σ = 3054648240. Its totient is φ = 232742400.

The previous prime is 1040303543. The next prime is 1040303587. The reversal of 1040303550 is 553030401.

It is a super-2 number, since 2×1040303550² = 2164462952285205000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 233746 + ... + 238154.

It is an arithmetic number, because the mean of its divisors is an integer number (21212835).

Almost surely, 2^1040303550 is an apocalyptic number.

1040303550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1040303550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1527324120).

1040303550 is an abundant number, since it is smaller than the sum of its proper divisors (2014344690).

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

1040303550 is a wasteful number, since it uses less digits than its factorization.

1040303550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4459 (or 4443 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 1040303550 is about 32253.7369927889. The cubic root of 1040303550 is about 1013.2579661985.

Adding to 1040303550 its reverse (553030401), we get a palindrome (1593333951).

It can be divided in two parts, 1040 and 303550, that added together give a triangular number (304590 = T₇₈₀).

The spelling of 1040303550 in words is "one billion, forty million, three hundred three thousand, five hundred fifty".