1012256340 has 48 divisors (see below), whose sum is σ = 2862397440. Its totient is φ = 267260800.

The previous prime is 1012256321. The next prime is 1012256341. The reversal of 1012256340 is 436522101.

It is a self number, because there is not a number n which added to its sum of digits gives 1012256340.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012256341) 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, 77460 + ... + 89579.

It is an arithmetic number, because the mean of its divisors is an integer number (59633280).

Almost surely, 2^1012256340 is an apocalyptic number.

1012256340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1012256340 is an abundant number, since it is smaller than the sum of its proper divisors (1850141100).

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

1012256340 is a wasteful number, since it uses less digits than its factorization.

1012256340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167152 (or 167150 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 1012256340 is about 31815.9761755003. The cubic root of 1012256340 is about 1004.0688685213.

Adding to 1012256340 its reverse (436522101), we get a palindrome (1448778441).

The spelling of 1012256340 in words is "one billion, twelve million, two hundred fifty-six thousand, three hundred forty".