1013403276 has 72 divisors (see below), whose sum is σ = 2677889760. Its totient is φ = 322527744.

The previous prime is 1013403271. The next prime is 1013403277. The reversal of 1013403276 is 6723043101.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1013403271) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 834846 + ... + 836058.

Almost surely, 2^1013403276 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1013403276, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1338944880).

1013403276 is an abundant number, since it is smaller than the sum of its proper divisors (1664486484).

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

1013403276 is a wasteful number, since it uses less digits than its factorization.

1013403276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2255 (or 2250 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 1013403276 is about 31833.9956021860. The cubic root of 1013403276 is about 1004.4479451179.

Adding to 1013403276 its reverse (6723043101), we get a palindrome (7736446377).

The spelling of 1013403276 in words is "one billion, thirteen million, four hundred three thousand, two hundred seventy-six".