1012726340 has 48 divisors (see below), whose sum is σ = 2238945408. Its totient is φ = 384029184.

The previous prime is 1012726301. The next prime is 1012726349. The reversal of 1012726340 is 436272101.

It is a super-2 number, since 2×1012726340² = 2051229279459591200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1012726349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42239 + ... + 61721.

It is an arithmetic number, because the mean of its divisors is an integer number (46644696).

Almost surely, 2^1012726340 is an apocalyptic number.

1012726340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1012726340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1119472704).

1012726340 is an abundant number, since it is smaller than the sum of its proper divisors (1226219068).

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

1012726340 is a wasteful number, since it uses less digits than its factorization.

1012726340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19628 (or 19626 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 1012726340 is about 31823.3615446263. The cubic root of 1012726340 is about 1004.2242439701.

Adding to 1012726340 its reverse (436272101), we get a palindrome (1448998441).

The spelling of 1012726340 in words is "one billion, twelve million, seven hundred twenty-six thousand, three hundred forty".