126763780 has 96 divisors (see below), whose sum is σ = 316108800. Its totient is φ = 42094080.

The previous prime is 126763753. The next prime is 126763783. The reversal of 126763780 is 87367621.

It is not an unprimeable number, because it can be changed into a prime (126763783) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 363046 + ... + 363394.

It is an arithmetic number, because the mean of its divisors is an integer number (3292800).

Almost surely, 2^126763780 is an apocalyptic number.

126763780 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 126763780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (158054400).

126763780 is an abundant number, since it is smaller than the sum of its proper divisors (189345020).

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

126763780 is a wasteful number, since it uses less digits than its factorization.

126763780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509 (or 507 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 40.

The square root of 126763780 is about 11258.9422238503. The cubic root of 126763780 is about 502.3407315187.

The spelling of 126763780 in words is "one hundred twenty-six million, seven hundred sixty-three thousand, seven hundred eighty".