1440004998 has 32 divisors (see below), whose sum is σ = 2968653024. Its totient is φ = 465322752.

The previous prime is 1440004997. The next prime is 1440005029. The reversal of 1440004998 is 8994000441.

It is a super-2 number, since 2×1440004998² = 4147228788529960008, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1440004997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49786 + ... + 73202.

It is an arithmetic number, because the mean of its divisors is an integer number (92770407).

Almost surely, 2^1440004998 is an apocalyptic number.

1440004998 is an abundant number, since it is smaller than the sum of its proper divisors (1528648026).

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

1440004998 is a wasteful number, since it uses less digits than its factorization.

1440004998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23736.

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 1440004998 is about 37947.3977763957. The cubic root of 1440004998 is about 1129.2445411274.

The spelling of 1440004998 in words is "one billion, four hundred forty million, four thousand, nine hundred ninety-eight".