106393442 has 16 divisors (see below), whose sum is σ = 164038392. Its totient is φ = 51722880.

The previous prime is 106393433. The next prime is 106393447. The reversal of 106393442 is 244393601.

It can be written as a sum of positive squares in 4 ways, for example, as 31933801 + 74459641 = 5651^2 + 8629^2 .

It is a super-2 number, since 2×106393442² = 22639129001214728, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 106393399 and 106393408.

It is not an unprimeable number, because it can be changed into a prime (106393447) 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, 23948 + ... + 28040.

Almost surely, 2^106393442 is an apocalyptic number.

106393442 is a deficient number, since it is larger than the sum of its proper divisors (57644950).

106393442 is a wasteful number, since it uses less digits than its factorization.

106393442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4453.

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 106393442 is about 10314.7196762685. The cubic root of 106393442 is about 473.8471647879.

The spelling of 106393442 in words is "one hundred six million, three hundred ninety-three thousand, four hundred forty-two".