10422640 has 40 divisors (see below), whose sum is σ = 25511760. Its totient is φ = 3949056.

The previous prime is 10422631. The next prime is 10422647. The reversal of 10422640 is 4622401.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10422647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1909 + ... + 4948.

It is an arithmetic number, because the mean of its divisors is an integer number (637794).

Almost surely, 2^10422640 is an apocalyptic number.

10422640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10422640 is an abundant number, since it is smaller than the sum of its proper divisors (15089120).

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

10422640 is a wasteful number, since it uses less digits than its factorization.

10422640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6889 (or 6883 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 10422640 is about 3228.4113740352. The cubic root of 10422640 is about 218.4368537056.

The spelling of 10422640 in words is "ten million, four hundred twenty-two thousand, six hundred forty".