10158440 has 32 divisors (see below), whose sum is σ = 22977000. Its totient is φ = 4041984.

The previous prime is 10158437. The next prime is 10158481. The reversal of 10158440 is 4485101.

It can be written as a sum of positive squares in 4 ways, for example, as 7540516 + 2617924 = 2746^2 + 1618^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8606 + ... + 9714.

Almost surely, 2^10158440 is an apocalyptic number.

10158440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10158440 is an abundant number, since it is smaller than the sum of its proper divisors (12818560).

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

10158440 is a wasteful number, since it uses less digits than its factorization.

10158440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1349 (or 1345 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 10158440 is about 3187.2307729438. The cubic root of 10158440 is about 216.5753408669.

The spelling of 10158440 in words is "ten million, one hundred fifty-eight thousand, four hundred forty".