1023041638 has 16 divisors (see below), whose sum is σ = 1612694160. Its totient is φ = 486120096.

The previous prime is 1023041597. The next prime is 1023041639. The reversal of 1023041638 is 8361403201.

It is a super-3 number, since 3×1023041638³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023041639) 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, 157573 + ... + 163936.

It is an arithmetic number, because the mean of its divisors is an integer number (100793385).

Almost surely, 2^1023041638 is an apocalyptic number.

1023041638 is a deficient number, since it is larger than the sum of its proper divisors (589652522).

1023041638 is a wasteful number, since it uses less digits than its factorization.

1023041638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321591.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 1023041638 is about 31985.0220884713. The cubic root of 1023041638 is about 1007.6222989417.

Adding to 1023041638 its reverse (8361403201), we get a palindrome (9384444839).

The spelling of 1023041638 in words is "one billion, twenty-three million, forty-one thousand, six hundred thirty-eight".