838920437476 has 243 divisors, whose sum is σ = 1794002712201. Its totient is φ = 342922694400.

The previous prime is 838920437473. The next prime is 838920437479. The reversal of 838920437476 is 674734029838.

It is a happy number.

The square root of 838920437476 is 915926.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (838920437473) and next prime (838920437479).

It can be written as a sum of positive squares in only one way, i.e., 653138748900 + 185781688576 = 808170^2 + 431024^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (838920437473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 10619246005 + ... + 10619246083.

Almost surely, 2^838920437476 is an apocalyptic number.

838920437476 is the 915926-th square number.

It is an amenable number.

838920437476 is an abundant number, since it is smaller than the sum of its proper divisors (955082274725).

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

838920437476 is a wasteful number, since it uses less digits than its factorization.

838920437476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280 (or 140 counting only the distinct ones).

The product of its (nonzero) digits is 48771072, while the sum is 61.

The spelling of 838920437476 in words is "eight hundred thirty-eight billion, nine hundred twenty million, four hundred thirty-seven thousand, four hundred seventy-six".