1642122441 has 24 divisors (see below), whose sum is σ = 2396998656. Its totient is φ = 1083223680.

The previous prime is 1642122437. The next prime is 1642122451. The reversal of 1642122441 is 1442212461.

1642122441 is a `hidden beast` number, since 1 + 6 + 4 + 212 + 2 + 441 = 666.

It is not a de Polignac number, because 1642122441 - 2² = 1642122437 is a prime.

It is a super-2 number, since 2×1642122441² = 5393132222471596962, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1642122451) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 876736 + ... + 878606.

It is an arithmetic number, because the mean of its divisors is an integer number (99874944).

Almost surely, 2^1642122441 is an apocalyptic number.

It is an amenable number.

1642122441 is a deficient number, since it is larger than the sum of its proper divisors (754876215).

1642122441 is a wasteful number, since it uses less digits than its factorization.

1642122441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2853 (or 2850 counting only the distinct ones).

The product of its digits is 3072, while the sum is 27.

The square root of 1642122441 is about 40523.1099620945. The cubic root of 1642122441 is about 1179.7822161038.

The spelling of 1642122441 in words is "one billion, six hundred forty-two million, one hundred twenty-two thousand, four hundred forty-one".