1639474046 has 24 divisors (see below), whose sum is σ = 2867779440. Its totient is φ = 700896672.

The previous prime is 1639474027. The next prime is 1639474079. The reversal of 1639474046 is 6404749361.

It is a super-2 number, since 2×1639474046² = 5375750295015220232, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1639473988 and 1639474006.

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 11 ways as a sum of consecutive naturals, for example, 19631 + ... + 60533.

It is an arithmetic number, because the mean of its divisors is an integer number (119490810).

Almost surely, 2^1639474046 is an apocalyptic number.

1639474046 is a deficient number, since it is larger than the sum of its proper divisors (1228305394).

1639474046 is a wasteful number, since it uses less digits than its factorization.

1639474046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41328 (or 41321 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 44.

The square root of 1639474046 is about 40490.4191877535. The cubic root of 1639474046 is about 1179.1476287176.

The spelling of 1639474046 in words is "one billion, six hundred thirty-nine million, four hundred seventy-four thousand, forty-six".