440198148649 has 8 divisors (see below), whose sum is σ = 519312101888. Its totient is φ = 365141321280.

The previous prime is 440198148629. The next prime is 440198148653. The reversal of 440198148649 is 946841891044.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 440198148649 - 2¹⁷ = 440198017577 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 440198148593 and 440198148602.

It is not an unprimeable number, because it can be changed into a prime (440198148629) 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, 1014281232 + ... + 1014281665.

It is an arithmetic number, because the mean of its divisors is an integer number (64914012736).

Almost surely, 2^440198148649 is an apocalyptic number.

It is an amenable number.

440198148649 is a deficient number, since it is larger than the sum of its proper divisors (79113953239).

440198148649 is a wasteful number, since it uses less digits than its factorization.

440198148649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2028562935.

The product of its (nonzero) digits is 7962624, while the sum is 58.

The spelling of 440198148649 in words is "four hundred forty billion, one hundred ninety-eight million, one hundred forty-eight thousand, six hundred forty-nine".