124272340 has 12 divisors (see below), whose sum is σ = 260971956. Its totient is φ = 49708928.

The previous prime is 124272283. The next prime is 124272347. The reversal of 124272340 is 43272421.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 93779856 + 30492484 = 9684^2 + 5522^2 .

It is a super-2 number, since 2×124272340² = 30887228978151200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124272347) 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, 3106789 + ... + 3106828.

It is an arithmetic number, because the mean of its divisors is an integer number (21747663).

Almost surely, 2^124272340 is an apocalyptic number.

124272340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

124272340 is an abundant number, since it is smaller than the sum of its proper divisors (136699616).

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

124272340 is a wasteful number, since it uses less digits than its factorization.

124272340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6213626 (or 6213624 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 124272340 is about 11147.7504457177. The cubic root of 124272340 is about 499.0278979266.

The spelling of 124272340 in words is "one hundred twenty-four million, two hundred seventy-two thousand, three hundred forty".