126365400 has 192 divisors, whose sum is σ = 497587200. Its totient is φ = 28874880.

The previous prime is 126365387. The next prime is 126365401. The reversal of 126365400 is 4563621.

126365400 is a `hidden beast` number, since 1 + 2 + 6 + 3 + 654 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126365401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 36129 + ... + 39471.

It is an arithmetic number, because the mean of its divisors is an integer number (2591600).

Almost surely, 2^126365400 is an apocalyptic number.

126365400 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 126365400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (248793600).

126365400 is an abundant number, since it is smaller than the sum of its proper divisors (371221800).

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

126365400 is a wasteful number, since it uses less digits than its factorization.

126365400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3375 (or 3360 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 126365400 is about 11241.2365867817. The cubic root of 126365400 is about 501.8139445853.

The spelling of 126365400 in words is "one hundred twenty-six million, three hundred sixty-five thousand, four hundred".