440402019 has 32 divisors (see below), whose sum is σ = 611331840. Its totient is φ = 281874432.

The previous prime is 440402003. The next prime is 440402029. The reversal of 440402019 is 910204044.

It is not a de Polignac number, because 440402019 - 2⁴ = 440402003 is a prime.

It is a super-2 number, since 2×440402019² = 387907876678552722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 440402019.

It is not an unprimeable number, because it can be changed into a prime (440402029) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1939984 + ... + 1940210.

It is an arithmetic number, because the mean of its divisors is an integer number (19104120).

Almost surely, 2^440402019 is an apocalyptic number.

440402019 is a deficient number, since it is larger than the sum of its proper divisors (170929821).

440402019 is a wasteful number, since it uses less digits than its factorization.

440402019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499.

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

The square root of 440402019 is about 20985.7575274280. The cubic root of 440402019 is about 760.8220669633.

The spelling of 440402019 in words is "four hundred forty million, four hundred two thousand, nineteen".