3455520 has 96 divisors (see below), whose sum is σ = 11394432. Its totient is φ = 878592.

The previous prime is 3455519. The next prime is 3455527. The reversal of 3455520 is 255543.

It is a tau number, because it is divible by the number of its divisors (96).

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

It is not an unprimeable number, because it can be changed into a prime (3455527) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10884 + ... + 11196.

It is an arithmetic number, because the mean of its divisors is an integer number (118692).

Almost surely, 2^3455520 is an apocalyptic number.

3455520 is a gapful number since it is divisible by the number (30) 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 3455520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5697216).

3455520 is an abundant number, since it is smaller than the sum of its proper divisors (7938912).

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

3455520 is a wasteful number, since it uses less digits than its factorization.

3455520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354 (or 346 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 24.

The square root of 3455520 is about 1858.9029022518. The cubic root of 3455520 is about 151.1835261019.

It can be divided in two parts, 345 and 5520, that multiplied together give a square (1904400 = 1380²).

The spelling of 3455520 in words is "three million, four hundred fifty-five thousand, five hundred twenty".