123780038 has 8 divisors (see below), whose sum is σ = 185863032. Its totient is φ = 61825696.

The previous prime is 123780037. The next prime is 123780049. The reversal of 123780038 is 830087321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 123779986 and 123780013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123780031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29720 + ... + 33627.

It is an arithmetic number, because the mean of its divisors is an integer number (23232879).

Almost surely, 2^123780038 is an apocalyptic number.

123780038 is a deficient number, since it is larger than the sum of its proper divisors (62082994).

123780038 is an equidigital number, since it uses as much as digits as its factorization.

123780038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64326.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 123780038 is about 11125.6477564230. The cubic root of 123780038 is about 498.3680633605.

The spelling of 123780038 in words is "one hundred twenty-three million, seven hundred eighty thousand, thirty-eight".