2001977242 has 16 divisors (see below), whose sum is σ = 3109622400. Its totient is φ = 965505520.

The previous prime is 2001977231. The next prime is 2001977249. The reversal of 2001977242 is 2427791002.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2001977198 and 2001977207.

It is not an unprimeable number, because it can be changed into a prime (2001977249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43059 + ... + 76537.

It is an arithmetic number, because the mean of its divisors is an integer number (194351400).

Almost surely, 2^2001977242 is an apocalyptic number.

2001977242 is a deficient number, since it is larger than the sum of its proper divisors (1107645158).

2001977242 is a wasteful number, since it uses less digits than its factorization.

2001977242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34541.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 2001977242 is about 44743.4603266220. The cubic root of 2001977242 is about 1260.3361079493.

The spelling of 2001977242 in words is "two billion, one million, nine hundred seventy-seven thousand, two hundred forty-two".