1642009612 has 12 divisors (see below), whose sum is σ = 2966211136. Its totient is φ = 794520720.

The previous prime is 1642009601. The next prime is 1642009627. The reversal of 1642009612 is 2169002461.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6620883 + ... + 6621130.

Almost surely, 2^1642009612 is an apocalyptic number.

It is an amenable number.

1642009612 is a deficient number, since it is larger than the sum of its proper divisors (1324201524).

1642009612 is a wasteful number, since it uses less digits than its factorization.

1642009612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13242048 (or 13242046 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 1642009612 is about 40521.7177819500. The cubic root of 1642009612 is about 1179.7551948348.

The spelling of 1642009612 in words is "one billion, six hundred forty-two million, nine thousand, six hundred twelve".