123740470 has 32 divisors (see below), whose sum is σ = 255725568. Its totient is φ = 42229728.

The previous prime is 123740447. The next prime is 123740473. The reversal of 123740470 is 74047321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123740473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11647 + ... + 19573.

It is an arithmetic number, because the mean of its divisors is an integer number (7991424).

Almost surely, 2^123740470 is an apocalyptic number.

123740470 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123740470 is an abundant number, since it is smaller than the sum of its proper divisors (131985098).

123740470 is a wasteful number, since it uses less digits than its factorization.

123740470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8164.

The product of its (nonzero) digits is 4704, while the sum is 28.

The square root of 123740470 is about 11123.8693807506. The cubic root of 123740470 is about 498.3149542879.

Adding to 123740470 its reverse (74047321), we get a palindrome (197787791).

The spelling of 123740470 in words is "one hundred twenty-three million, seven hundred forty thousand, four hundred seventy".