1011532240 has 40 divisors (see below), whose sum is σ = 2353284648. Its totient is φ = 404359680.

The previous prime is 1011532231. The next prime is 1011532289. The reversal of 1011532240 is 422351101.

It can be written as a sum of positive squares in 4 ways, for example, as 39589264 + 971942976 = 6292^2 + 31176^2 .

It is a tau number, because it is divible by the number of its divisors (40).

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 7 ways as a sum of consecutive naturals, for example, 174834 + ... + 180526.

Almost surely, 2^1011532240 is an apocalyptic number.

1011532240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1011532240 is an abundant number, since it is smaller than the sum of its proper divisors (1341752408).

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

1011532240 is a wasteful number, since it uses less digits than its factorization.

1011532240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7927 (or 7921 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1011532240 is about 31804.5946366244. The cubic root of 1011532240 is about 1003.8293970002.

Adding to 1011532240 its reverse (422351101), we get a palindrome (1433883341).

The spelling of 1011532240 in words is "one billion, eleven million, five hundred thirty-two thousand, two hundred forty".