830998490402 has 8 divisors (see below), whose sum is σ = 1247208806316. Its totient is φ = 415262221632.

The previous prime is 830998490401. The next prime is 830998490417. The reversal of 830998490402 is 204094899038.

It can be written as a sum of positive squares in 2 ways, for example, as 815483047681 + 15515442721 = 903041^2 + 124561^2 .

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

It is a super-2 number, since 2×830998490402² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (830998490401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 118507403 + ... + 118514414.

Almost surely, 2^830998490402 is an apocalyptic number.

830998490402 is a deficient number, since it is larger than the sum of its proper divisors (416210315914).

830998490402 is a wasteful number, since it uses less digits than its factorization.

830998490402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237023572.

The product of its (nonzero) digits is 4478976, while the sum is 56.

The spelling of 830998490402 in words is "eight hundred thirty billion, nine hundred ninety-eight million, four hundred ninety thousand, four hundred two".