10342640 has 160 divisors (see below), whose sum is σ = 31712256. Its totient is φ = 3041280.

The previous prime is 10342603. The next prime is 10342643. The reversal of 10342640 is 4624301.

It is a happy number.

10342640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10342643) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 141644 + ... + 141716.

Almost surely, 2^10342640 is an apocalyptic number.

10342640 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 10342640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15856128).

10342640 is an abundant number, since it is smaller than the sum of its proper divisors (21369616).

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

10342640 is a wasteful number, since it uses less digits than its factorization.

10342640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127 (or 121 counting only the distinct ones).

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

The square root of 10342640 is about 3215.9975124368. The cubic root of 10342640 is about 217.8765398068.

Adding to 10342640 its reverse (4624301), we get a palindrome (14966941).

The spelling of 10342640 in words is "ten million, three hundred forty-two thousand, six hundred forty".