123676390 has 16 divisors (see below), whose sum is σ = 226391760. Its totient is φ = 48631840.

The previous prime is 123676373. The next prime is 123676393. The reversal of 123676390 is 93676321.

123676390 is nontrivially palindromic in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123676393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104221 + ... + 105400.

It is an arithmetic number, because the mean of its divisors is an integer number (14149485).

Almost surely, 2^123676390 is an apocalyptic number.

123676390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123676390 is a deficient number, since it is larger than the sum of its proper divisors (102715370).

123676390 is a wasteful number, since it uses less digits than its factorization.

123676390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209687.

The product of its (nonzero) digits is 40824, while the sum is 37.

The square root of 123676390 is about 11120.9887150379. The cubic root of 123676390 is about 498.2289206296.

The spelling of 123676390 in words is "one hundred twenty-three million, six hundred seventy-six thousand, three hundred ninety".