101642044 has 24 divisors (see below), whose sum is σ = 203506688. Its totient is φ = 43513200.

The previous prime is 101642041. The next prime is 101642063. The reversal of 101642044 is 440246101.

It is a super-2 number, since 2×101642044² = 20662210216995872, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101642041) 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, 38569 + ... + 41119.

Almost surely, 2^101642044 is an apocalyptic number.

101642044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

101642044 is an abundant number, since it is smaller than the sum of its proper divisors (101864644).

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

101642044 is a wasteful number, since it uses less digits than its factorization.

101642044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3985 (or 3983 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 101642044 is about 10081.7679005222. The cubic root of 101642044 is about 466.6856674803.

Adding to 101642044 its reverse (440246101), we get a palindrome (541888145).

The spelling of 101642044 in words is "one hundred one million, six hundred forty-two thousand, forty-four".