10426340 has 12 divisors (see below), whose sum is σ = 21895356. Its totient is φ = 4170528.

The previous prime is 10426313. The next prime is 10426349. The reversal of 10426340 is 4362401.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 7529536 + 2896804 = 2744^2 + 1702^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 521317 = 10426340 / (1 + 0 + 4 + 2 + 6 + 3 + 4 + 0).

It is not an unprimeable number, because it can be changed into a prime (10426349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 260639 + ... + 260678.

It is an arithmetic number, because the mean of its divisors is an integer number (1824613).

Almost surely, 2^10426340 is an apocalyptic number.

10426340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10426340 is an abundant number, since it is smaller than the sum of its proper divisors (11469016).

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

10426340 is a wasteful number, since it uses less digits than its factorization.

10426340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 521326 (or 521324 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 10426340 is about 3228.9843604452. The cubic root of 10426340 is about 218.4626987487.

Adding to 10426340 its reverse (4362401), we get a palindrome (14788741).

The spelling of 10426340 in words is "ten million, four hundred twenty-six thousand, three hundred forty".