898440395 has 16 divisors (see below), whose sum is σ = 1143017568. Its totient is φ = 675601920.

The previous prime is 898440371. The next prime is 898440397. The reversal of 898440395 is 593044898.

It is a happy number.

It is not a de Polignac number, because 898440395 - 2¹⁰ = 898439371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (898440397) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63905 + ... + 76685.

It is an arithmetic number, because the mean of its divisors is an integer number (71438598).

Almost surely, 2^898440395 is an apocalyptic number.

898440395 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

898440395 is a deficient number, since it is larger than the sum of its proper divisors (244577173).

898440395 is a wasteful number, since it uses less digits than its factorization.

898440395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13630.

The product of its (nonzero) digits is 1244160, while the sum is 50.

The square root of 898440395 is about 29973.9953126039. The cubic root of 898440395 is about 964.9313650882.

The spelling of 898440395 in words is "eight hundred ninety-eight million, four hundred forty thousand, three hundred ninety-five".