106405388 has 6 divisors (see below), whose sum is σ = 186209436. Its totient is φ = 53202692.

The previous prime is 106405333. The next prime is 106405399. The reversal of 106405388 is 883504601.

It is a super-2 number, since 2×106405388² = 22644213190861088, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13300670 + ... + 13300677.

It is an arithmetic number, because the mean of its divisors is an integer number (31034906).

Almost surely, 2^106405388 is an apocalyptic number.

It is an amenable number.

106405388 is a deficient number, since it is larger than the sum of its proper divisors (79804048).

106405388 is a wasteful number, since it uses less digits than its factorization.

106405388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26601351 (or 26601349 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 106405388 is about 10315.2987353736. The cubic root of 106405388 is about 473.8648988583.

Adding to 106405388 its reverse (883504601), we get a palindrome (989909989).

The spelling of 106405388 in words is "one hundred six million, four hundred five thousand, three hundred eighty-eight".