1040135250 has 384 divisors, whose sum is σ = 3441844224. Its totient is φ = 206640000.

The previous prime is 1040135227. The next prime is 1040135287. The reversal of 1040135250 is 525310401.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 12531709 + ... + 12531791.

It is an arithmetic number, because the mean of its divisors is an integer number (8963136).

Almost surely, 2^1040135250 is an apocalyptic number.

1040135250 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 1040135250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1720922112).

1040135250 is an abundant number, since it is smaller than the sum of its proper divisors (2401708974).

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

1040135250 is a wasteful number, since it uses less digits than its factorization.

1040135250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159 (or 142 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 1040135250 is about 32251.1278872538. The cubic root of 1040135250 is about 1013.2033217271.

Adding to 1040135250 its reverse (525310401), we get a palindrome (1565445651).

The spelling of 1040135250 in words is "one billion, forty million, one hundred thirty-five thousand, two hundred fifty".