126402630 has 64 divisors (see below), whose sum is σ = 322583040. Its totient is φ = 31608576.

The previous prime is 126402629. The next prime is 126402637. The reversal of 126402630 is 36204621.

It is a self number, because there is not a number n which added to its sum of digits gives 126402630.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126402637) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57634 + ... + 59786.

It is an arithmetic number, because the mean of its divisors is an integer number (5040360).

Almost surely, 2^126402630 is an apocalyptic number.

126402630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 126402630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161291520).

126402630 is an abundant number, since it is smaller than the sum of its proper divisors (196180410).

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

126402630 is a wasteful number, since it uses less digits than its factorization.

126402630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2285.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 126402630 is about 11242.8924214368. The cubic root of 126402630 is about 501.8632215200.

The spelling of 126402630 in words is "one hundred twenty-six million, four hundred two thousand, six hundred thirty".