42994437201 has 15 divisors (see below), whose sum is σ = 64229045881. Its totient is φ = 28661714028.

The previous prime is 42994437193. The next prime is 42994437203. The reversal of 42994437201 is 10273449924.

The square root of 42994437201 is 207351.

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

42994437201 is a `hidden beast` number, since 4 + 2 + 9 + 9 + 4 + 437 + 201 = 666.

It is not a de Polignac number, because 42994437201 - 2³ = 42994437193 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42994437203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 1854640 + ... + 1877678.

Almost surely, 2^42994437201 is an apocalyptic number.

42994437201 is the 207351-st square number.

42994437201 is the 103676-th centered octagonal number.

It is an amenable number.

42994437201 is a deficient number, since it is larger than the sum of its proper divisors (21234608680).

42994437201 is an frugal number, since it uses more digits than its factorization.

42994437201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46090 (or 23042 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The spelling of 42994437201 in words is "forty-two billion, nine hundred ninety-four million, four hundred thirty-seven thousand, two hundred one".