1405898853 has 8 divisors (see below), whose sum is σ = 1877960928. Its totient is φ = 935551344.

The previous prime is 1405898839. The next prime is 1405898869. The reversal of 1405898853 is 3588985041.

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

It is not a de Polignac number, because 1405898853 - 2⁵ = 1405898821 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 1405898796 and 1405898805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1405898353) 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, 426726 + ... + 430007.

It is an arithmetic number, because the mean of its divisors is an integer number (234745116).

Almost surely, 2^1405898853 is an apocalyptic number.

It is an amenable number.

1405898853 is a deficient number, since it is larger than the sum of its proper divisors (472062075).

1405898853 is an equidigital number, since it uses as much as digits as its factorization.

1405898853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 857283.

The product of its (nonzero) digits is 1382400, while the sum is 51.

The square root of 1405898853 is about 37495.3177476868. The cubic root of 1405898853 is about 1120.2579266196.

The spelling of 1405898853 in words is "one billion, four hundred five million, eight hundred ninety-eight thousand, eight hundred fifty-three".