1042639377 has 8 divisors (see below), whose sum is σ = 1497123264. Its totient is φ = 641624208.

The previous prime is 1042639369. The next prime is 1042639387. The reversal of 1042639377 is 7739362401.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1042639377 - 2³ = 1042639369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1042639387) 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, 13367133 + ... + 13367210.

It is an arithmetic number, because the mean of its divisors is an integer number (187140408).

Almost surely, 2^1042639377 is an apocalyptic number.

It is an amenable number.

1042639377 is a deficient number, since it is larger than the sum of its proper divisors (454483887).

1042639377 is a wasteful number, since it uses less digits than its factorization.

1042639377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26734359.

The product of its (nonzero) digits is 190512, while the sum is 42.

The square root of 1042639377 is about 32289.9268658199. The cubic root of 1042639377 is about 1014.0157662041.

The spelling of 1042639377 in words is "one billion, forty-two million, six hundred thirty-nine thousand, three hundred seventy-seven".