124247380 has 48 divisors (see below), whose sum is σ = 281078784. Its totient is φ = 45999360.

The previous prime is 124247377. The next prime is 124247393. The reversal of 124247380 is 83742421.

It is a super-2 number, since 2×124247380² = 30874822873728800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9904 + ... + 18616.

It is an arithmetic number, because the mean of its divisors is an integer number (5855808).

Almost surely, 2^124247380 is an apocalyptic number.

124247380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 124247380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140539392).

124247380 is an abundant number, since it is smaller than the sum of its proper divisors (156831404).

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

124247380 is a wasteful number, since it uses less digits than its factorization.

124247380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8776 (or 8774 counting only the distinct ones).

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

The square root of 124247380 is about 11146.6308811228. The cubic root of 124247380 is about 498.9944859050.

The spelling of 124247380 in words is "one hundred twenty-four million, two hundred forty-seven thousand, three hundred eighty".