124021340 has 12 divisors (see below), whose sum is σ = 260444856. Its totient is φ = 49608528.

The previous prime is 124021327. The next prime is 124021343. The reversal of 124021340 is 43120421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124021343) 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, 3100514 + ... + 3100553.

It is an arithmetic number, because the mean of its divisors is an integer number (21703738).

Almost surely, 2^124021340 is an apocalyptic number.

124021340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

124021340 is an abundant number, since it is smaller than the sum of its proper divisors (136423516).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

124021340 is a wasteful number, since it uses less digits than its factorization.

124021340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6201076 (or 6201074 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 124021340 is about 11136.4868787244. The cubic root of 124021340 is about 498.6916996864.

Adding to 124021340 its reverse (43120421), we get a palindrome (167141761).

The spelling of 124021340 in words is "one hundred twenty-four million, twenty-one thousand, three hundred forty".