126387400 has 24 divisors (see below), whose sum is σ = 293851170. Its totient is φ = 50554880.

The previous prime is 126387397. The next prime is 126387421. The reversal of 126387400 is 4783621.

It can be written as a sum of positive squares in 3 ways, for example, as 68657796 + 57729604 = 8286^2 + 7598^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 315769 + ... + 316168.

Almost surely, 2^126387400 is an apocalyptic number.

126387400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126387400 is an abundant number, since it is smaller than the sum of its proper divisors (167463770).

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

126387400 is a wasteful number, since it uses less digits than its factorization.

126387400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631953 (or 631944 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 126387400 is about 11242.2150842261. The cubic root of 126387400 is about 501.8430645453.

The spelling of 126387400 in words is "one hundred twenty-six million, three hundred eighty-seven thousand, four hundred".