101400424 has 16 divisors (see below), whose sum is σ = 195264900. Its totient is φ = 49329792.

The previous prime is 101400389. The next prime is 101400433. The reversal of 101400424 is 424004101.

It can be written as a sum of positive squares in 2 ways, for example, as 89908324 + 11492100 = 9482^2 + 3390^2 .

It is a junction number, because it is equal to n+sod(n) for n = 101400398 and 101400407.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170989 + ... + 171580.

Almost surely, 2^101400424 is an apocalyptic number.

It is an amenable number.

101400424 is a deficient number, since it is larger than the sum of its proper divisors (93864476).

101400424 is a wasteful number, since it uses less digits than its factorization.

101400424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342612 (or 342608 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 101400424 is about 10069.7777532575. Note that the first 4 decimals coincide. The cubic root of 101400424 is about 466.3155776535.

Adding to 101400424 its reverse (424004101), we get a palindrome (525404525).

The spelling of 101400424 in words is "one hundred one million, four hundred thousand, four hundred twenty-four".