101422404 has 36 divisors (see below), whose sum is σ = 259891996. Its totient is φ = 33343488.

The previous prime is 101422403. The next prime is 101422463. The reversal of 101422404 is 404224101.

It can be written as a sum of positive squares in 2 ways, for example, as 63968004 + 37454400 = 7998^2 + 6120^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (101422403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16669 + ... + 21924.

Almost surely, 2^101422404 is an apocalyptic number.

It is an amenable number.

101422404 is an abundant number, since it is smaller than the sum of its proper divisors (158469592).

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

101422404 is a wasteful number, since it uses less digits than its factorization.

101422404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38676 (or 38671 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 101422404 is about 10070.8690786843. The cubic root of 101422404 is about 466.3492687549.

Adding to 101422404 its reverse (404224101), we get a palindrome (505646505).

The spelling of 101422404 in words is "one hundred one million, four hundred twenty-two thousand, four hundred four".