4019240 has 32 divisors (see below), whose sum is σ = 9153000. Its totient is φ = 1588224.

The previous prime is 4019231. The next prime is 4019251. The reversal of 4019240 is 429104.

It can be written as a sum of positive squares in 4 ways, for example, as 1653796 + 2365444 = 1286^2 + 1538^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 2996 + ... + 4124.

Almost surely, 2^4019240 is an apocalyptic number.

4019240 is a gapful number since it is divisible by the number (40) 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 4019240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4576500).

4019240 is an abundant number, since it is smaller than the sum of its proper divisors (5133760).

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

4019240 is a wasteful number, since it uses less digits than its factorization.

4019240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1229 (or 1225 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 4019240 is about 2004.8042298439. The cubic root of 4019240 is about 158.9942115161.

The spelling of 4019240 in words is "four million, nineteen thousand, two hundred forty".