1042023636 has 96 divisors (see below), whose sum is σ = 2869776000. Its totient is φ = 325845504.

The previous prime is 1042023623. The next prime is 1042023643. The reversal of 1042023636 is 6363202401.

1042023636 is a `hidden beast` number, since 1 + 0 + 4 + 2 + 0 + 23 + 636 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 713475 + ... + 714933.

It is an arithmetic number, because the mean of its divisors is an integer number (29893500).

Almost surely, 2^1042023636 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1042023636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1434888000).

1042023636 is an abundant number, since it is smaller than the sum of its proper divisors (1827752364).

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

1042023636 is a wasteful number, since it uses less digits than its factorization.

1042023636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1878 (or 1870 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 1042023636 is about 32280.3908898266. The cubic root of 1042023636 is about 1013.8161145490.

The spelling of 1042023636 in words is "one billion, forty-two million, twenty-three thousand, six hundred thirty-six".