10279640 has 32 divisors (see below), whose sum is σ = 26434080. Its totient is φ = 3524352.

The previous prime is 10279639. The next prime is 10279663. The reversal of 10279640 is 4697201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18077 + ... + 18636.

It is an arithmetic number, because the mean of its divisors is an integer number (826065).

Almost surely, 2^10279640 is an apocalyptic number.

10279640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10279640 is an abundant number, since it is smaller than the sum of its proper divisors (16154440).

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

10279640 is a wasteful number, since it uses less digits than its factorization.

10279640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36731 (or 36727 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 10279640 is about 3206.1877674272. The cubic root of 10279640 is about 217.4332556025.

The spelling of 10279640 in words is "ten million, two hundred seventy-nine thousand, six hundred forty".