4219240 has 32 divisors (see below), whose sum is σ = 9551880. Its totient is φ = 1677312.

The previous prime is 4219231. The next prime is 4219261. The reversal of 4219240 is 429124.

It can be written as a sum of positive squares in 4 ways, for example, as 1483524 + 2735716 = 1218^2 + 1654^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12352 + ... + 12688.

Almost surely, 2^4219240 is an apocalyptic number.

4219240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4219240 is an abundant number, since it is smaller than the sum of its proper divisors (5332640).

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

4219240 is a wasteful number, since it uses less digits than its factorization.

4219240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661 (or 657 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 4219240 is about 2054.0788689824. The cubic root of 4219240 is about 161.5888573502.

The spelling of 4219240 in words is "four million, two hundred nineteen thousand, two hundred forty".