1015440132 has 36 divisors (see below), whose sum is σ = 2756196240. Its totient is φ = 290125584.

The previous prime is 1015440109. The next prime is 1015440143. The reversal of 1015440132 is 2310445101.

It is a super-2 number, since 2×1015440132² = 2062237323352354848, which contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 1015440099 and 1015440108.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 862882 + ... + 864057.

Almost surely, 2^1015440132 is an apocalyptic number.

1015440132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1015440132 is an abundant number, since it is smaller than the sum of its proper divisors (1740756108).

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

1015440132 is a wasteful number, since it uses less digits than its factorization.

1015440132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1726960 (or 1726951 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 1015440132 is about 31865.9713801415. The cubic root of 1015440132 is about 1005.1204469389.

Adding to 1015440132 its reverse (2310445101), we get a palindrome (3325885233).

The spelling of 1015440132 in words is "one billion, fifteen million, four hundred forty thousand, one hundred thirty-two".