40689346 has 16 divisors (see below), whose sum is σ = 63835200. Its totient is φ = 19415088.

The previous prime is 40689293. The next prime is 40689353. The reversal of 40689346 is 64398604.

It is a junction number, because it is equal to n+sod(n) for n = 40689299 and 40689308.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27760 + ... + 29188.

It is an arithmetic number, because the mean of its divisors is an integer number (3989700).

Almost surely, 2^40689346 is an apocalyptic number.

40689346 is a gapful number since it is divisible by the number (46) formed by its first and last digit.

40689346 is a deficient number, since it is larger than the sum of its proper divisors (23145854).

40689346 is a wasteful number, since it uses less digits than its factorization.

40689346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2073.

The product of its (nonzero) digits is 124416, while the sum is 40.

The square root of 40689346 is about 6378.8201103339. The cubic root of 40689346 is about 343.9486188357.

The spelling of 40689346 in words is "forty million, six hundred eighty-nine thousand, three hundred forty-six".