105681402 has 32 divisors (see below), whose sum is σ = 238704960. Its totient is φ = 34648560.

The previous prime is 105681397. The next prime is 105681461. The reversal of 105681402 is 204186501.

It is a super-2 number, since 2×105681402² = 22337117457371208, 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 polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12748 + ... + 19335.

It is an arithmetic number, because the mean of its divisors is an integer number (7459530).

Almost surely, 2^105681402 is an apocalyptic number.

105681402 is an abundant number, since it is smaller than the sum of its proper divisors (133023558).

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

105681402 is a wasteful number, since it uses less digits than its factorization.

105681402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32155 (or 32149 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 105681402 is about 10280.1460106362. The cubic root of 105681402 is about 472.7877209571.

The spelling of 105681402 in words is "one hundred five million, six hundred eighty-one thousand, four hundred two".