1807977042 has 48 divisors (see below), whose sum is σ = 3948721920. Its totient is φ = 597844800.

The previous prime is 1807977007. The next prime is 1807977043. The reversal of 1807977042 is 2407797081.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1807977043) 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, 1370059 + ... + 1371377.

It is an arithmetic number, because the mean of its divisors is an integer number (82265040).

Almost surely, 2^1807977042 is an apocalyptic number.

1807977042 is an abundant number, since it is smaller than the sum of its proper divisors (2140744878).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1807977042 is a wasteful number, since it uses less digits than its factorization.

1807977042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1879 (or 1876 counting only the distinct ones).

The product of its (nonzero) digits is 197568, while the sum is 45.

The square root of 1807977042 is about 42520.3132867104. The cubic root of 1807977042 is about 1218.2347133552.

The spelling of 1807977042 in words is "one billion, eight hundred seven million, nine hundred seventy-seven thousand, forty-two".