10555440 has 160 divisors (see below), whose sum is σ = 38378496. Its totient is φ = 2350080.

The previous prime is 10555429. The next prime is 10555463. The reversal of 10555440 is 4455501.

It is a super-2 number, since 2×10555440² = 222834627187200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 10555440.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 102429 + ... + 102531.

Almost surely, 2^10555440 is an apocalyptic number.

10555440 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 10555440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19189248).

10555440 is an abundant number, since it is smaller than the sum of its proper divisors (27823056).

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

10555440 is a wasteful number, since it uses less digits than its factorization.

10555440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187 (or 181 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 10555440 is about 3248.9136645962. The cubic root of 10555440 is about 219.3606783615.

The spelling of 10555440 in words is "ten million, five hundred fifty-five thousand, four hundred forty".