126747740 has 48 divisors (see below), whose sum is σ = 306561024. Its totient is φ = 43118400.

The previous prime is 126747697. The next prime is 126747743. The reversal of 126747740 is 47747621.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 126747694 and 126747703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126747743) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14885 + ... + 21795.

It is an arithmetic number, because the mean of its divisors is an integer number (6386688).

Almost surely, 2^126747740 is an apocalyptic number.

126747740 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 126747740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153280512).

126747740 is an abundant number, since it is smaller than the sum of its proper divisors (179813284).

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

126747740 is a wasteful number, since it uses less digits than its factorization.

126747740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7058 (or 7056 counting only the distinct ones).

The product of its (nonzero) digits is 65856, while the sum is 38.

The square root of 126747740 is about 11258.2298786266. The cubic root of 126747740 is about 502.3195428027.

The spelling of 126747740 in words is "one hundred twenty-six million, seven hundred forty-seven thousand, seven hundred forty".