4126640 has 40 divisors (see below), whose sum is σ = 10966560. Its totient is φ = 1414656.

The previous prime is 4126621. The next prime is 4126651. The reversal of 4126640 is 466214.

It is a happy number.

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

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, 3125 + ... + 4244.

It is an arithmetic number, because the mean of its divisors is an integer number (274164).

Almost surely, 2^4126640 is an apocalyptic number.

4126640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4126640 is an abundant number, since it is smaller than the sum of its proper divisors (6839920).

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

4126640 is a wasteful number, since it uses less digits than its factorization.

4126640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7389 (or 7383 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 4126640 is about 2031.4133011281. The cubic root of 4126640 is about 160.3979676486.

The spelling of 4126640 in words is "four million, one hundred twenty-six thousand, six hundred forty".