4219440 has 40 divisors (see below), whose sum is σ = 13081008. Its totient is φ = 1125120.

The previous prime is 4219429. The next prime is 4219447. The reversal of 4219440 is 449124.

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

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 4219440.

It is not an unprimeable number, because it can be changed into a prime (4219447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8551 + ... + 9030.

Almost surely, 2^4219440 is an apocalyptic number.

4219440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4219440 is an abundant number, since it is smaller than the sum of its proper divisors (8861568).

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

4219440 is a wasteful number, since it uses less digits than its factorization.

4219440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17597 (or 17591 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 4219440 is about 2054.1275520279. The cubic root of 4219440 is about 161.5914105162.

The spelling of 4219440 in words is "four million, two hundred nineteen thousand, four hundred forty".