1042381904 has 20 divisors (see below), whose sum is σ = 2020296660. Its totient is φ = 521015040.

The previous prime is 1042381891. The next prime is 1042381931. The reversal of 1042381904 is 4091832401.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 71436304 + 970945600 = 8452^2 + 31160^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47234 + ... + 65694.

It is an arithmetic number, because the mean of its divisors is an integer number (101014833).

Almost surely, 2^1042381904 is an apocalyptic number.

It is an amenable number.

1042381904 is a deficient number, since it is larger than the sum of its proper divisors (977914756).

1042381904 is a wasteful number, since it uses less digits than its factorization.

1042381904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21998 (or 21992 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 1042381904 is about 32285.9397261409. The cubic root of 1042381904 is about 1013.9322911372.

The spelling of 1042381904 in words is "one billion, forty-two million, three hundred eighty-one thousand, nine hundred four".