1042306638 has 16 divisors (see below), whose sum is σ = 2085063120. Its totient is φ = 347360576.

The previous prime is 1042306631. The next prime is 1042306711. The reversal of 1042306638 is 8366032401.

It is a junction number, because it is equal to n+sod(n) for n = 1042306599 and 1042306608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042306631) 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, 16468 + ... + 48536.

It is an arithmetic number, because the mean of its divisors is an integer number (130316445).

Almost surely, 2^1042306638 is an apocalyptic number.

1042306638 is an abundant number, since it is smaller than the sum of its proper divisors (1042756482).

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

1042306638 is a wasteful number, since it uses less digits than its factorization.

1042306638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37491.

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 1042306638 is about 32284.7740893443. The cubic root of 1042306638 is about 1013.9078866253.

The spelling of 1042306638 in words is "one billion, forty-two million, three hundred six thousand, six hundred thirty-eight".