1681373404 has 12 divisors (see below), whose sum is σ = 2975464800. Its totient is φ = 831240608.

The previous prime is 1681373399. The next prime is 1681373417. The reversal of 1681373404 is 4043731861.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2361124 + ... + 2361835.

It is an arithmetic number, because the mean of its divisors is an integer number (247955400).

Almost surely, 2^1681373404 is an apocalyptic number.

It is an amenable number.

1681373404 is a deficient number, since it is larger than the sum of its proper divisors (1294091396).

1681373404 is a wasteful number, since it uses less digits than its factorization.

1681373404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4723052 (or 4723050 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 1681373404 is about 41004.5534544641. The cubic root of 1681373404 is about 1189.1082470074.

The spelling of 1681373404 in words is "one billion, six hundred eighty-one million, three hundred seventy-three thousand, four hundred four".