123842470 has 16 divisors (see below), whose sum is σ = 230603760. Its totient is φ = 47828704.

The previous prime is 123842461. The next prime is 123842471. The reversal of 123842470 is 74248321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123842471) 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, 213232 + ... + 213811.

It is an arithmetic number, because the mean of its divisors is an integer number (14412735).

Almost surely, 2^123842470 is an apocalyptic number.

123842470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123842470 is a deficient number, since it is larger than the sum of its proper divisors (106761290).

123842470 is a wasteful number, since it uses less digits than its factorization.

123842470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427079.

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 123842470 is about 11128.4531719372. The cubic root of 123842470 is about 498.4518380031.

The spelling of 123842470 in words is "one hundred twenty-three million, eight hundred forty-two thousand, four hundred seventy".