105931428 has 24 divisors (see below), whose sum is σ = 248054688. Its totient is φ = 35184576.

The previous prime is 105931387. The next prime is 105931429. The reversal of 105931428 is 824139501.

It is a super-2 number, since 2×105931428² = 22442934876238368, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105931429) 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, 12201 + ... + 18992.

It is an arithmetic number, because the mean of its divisors is an integer number (10335612).

Almost surely, 2^105931428 is an apocalyptic number.

It is an amenable number.

105931428 is an abundant number, since it is smaller than the sum of its proper divisors (142123260).

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

105931428 is a wasteful number, since it uses less digits than its factorization.

105931428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31483 (or 31481 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 105931428 is about 10292.2994515317. The cubic root of 105931428 is about 473.1602750716.

It can be divided in two parts, 10593 and 1428, that added together give a palindrome (12021).

The spelling of 105931428 in words is "one hundred five million, nine hundred thirty-one thousand, four hundred twenty-eight".