1045631838 has 16 divisors (see below), whose sum is σ = 2092536720. Its totient is φ = 348331776.

The previous prime is 1045631837. The next prime is 1045631857. The reversal of 1045631838 is 8381365401.

It is a junction number, because it is equal to n+sod(n) for n = 1045631796 and 1045631805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1045631831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42195 + ... + 62222.

It is an arithmetic number, because the mean of its divisors is an integer number (130783545).

Almost surely, 2^1045631838 is an apocalyptic number.

1045631838 is an abundant number, since it is smaller than the sum of its proper divisors (1046904882).

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

1045631838 is a wasteful number, since it uses less digits than its factorization.

1045631838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106091.

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 1045631838 is about 32336.2310419752. The cubic root of 1045631838 is about 1014.9849425480.

The spelling of 1045631838 in words is "one billion, forty-five million, six hundred thirty-one thousand, eight hundred thirty-eight".