124742490 has 16 divisors (see below), whose sum is σ = 299382048. Its totient is φ = 33264656.

The previous prime is 124742479. The next prime is 124742521. The reversal of 124742490 is 94247421.

It is a super-2 number, since 2×124742490² = 31121377622800200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2079012 + ... + 2079071.

It is an arithmetic number, because the mean of its divisors is an integer number (18711378).

Almost surely, 2^124742490 is an apocalyptic number.

124742490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

124742490 is an abundant number, since it is smaller than the sum of its proper divisors (174639558).

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

124742490 is a wasteful number, since it uses less digits than its factorization.

124742490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4158093.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 124742490 is about 11168.8177530122. The cubic root of 124742490 is about 499.6564172893.

The spelling of 124742490 in words is "one hundred twenty-four million, seven hundred forty-two thousand, four hundred ninety".