106280640 has 112 divisors (see below), whose sum is σ = 374964960. Its totient is φ = 28339200.

The previous prime is 106280633. The next prime is 106280659. The reversal of 106280640 is 46082601.

106280640 is a `hidden beast` number, since 10 + 6 + 2 + 8 + 0 + 640 = 666.

It is a super-2 number, since 2×106280640² = 22591148877619200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2490 + ... + 14790.

Almost surely, 2^106280640 is an apocalyptic number.

106280640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 106280640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187482480).

106280640 is an abundant number, since it is smaller than the sum of its proper divisors (268684320).

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

106280640 is a wasteful number, since it uses less digits than its factorization.

106280640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12327 (or 12311 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 106280640 is about 10309.2502152193. The cubic root of 106280640 is about 473.6796425290.

The spelling of 106280640 in words is "one hundred six million, two hundred eighty thousand, six hundred forty".