101442428 has 6 divisors (see below), whose sum is σ = 177524256. Its totient is φ = 50721212.

The previous prime is 101442427. The next prime is 101442437. The reversal of 101442428 is 824244101.

It is a junction number, because it is equal to n+sod(n) for n = 101442397 and 101442406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101442421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12680300 + ... + 12680307.

It is an arithmetic number, because the mean of its divisors is an integer number (29587376).

Almost surely, 2^101442428 is an apocalyptic number.

It is an amenable number.

101442428 is a deficient number, since it is larger than the sum of its proper divisors (76081828).

101442428 is a wasteful number, since it uses less digits than its factorization.

101442428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25360611 (or 25360609 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 26.

The square root of 101442428 is about 10071.8631841383. The cubic root of 101442428 is about 466.3799574486.

Adding to 101442428 its reverse (824244101), we get a palindrome (925686529).

The spelling of 101442428 in words is "one hundred one million, four hundred forty-two thousand, four hundred twenty-eight".