126212380 has 24 divisors (see below), whose sum is σ = 302910048. Its totient is φ = 43272768.

The previous prime is 126212351. The next prime is 126212399. The reversal of 126212380 is 83212621.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 450619 + ... + 450898.

It is an arithmetic number, because the mean of its divisors is an integer number (12621252).

Almost surely, 2^126212380 is an apocalyptic number.

126212380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126212380 is an abundant number, since it is smaller than the sum of its proper divisors (176697668).

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

126212380 is a wasteful number, since it uses less digits than its factorization.

126212380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 901533 (or 901531 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 126212380 is about 11234.4283343658. The cubic root of 126212380 is about 501.6113084588.

The spelling of 126212380 in words is "one hundred twenty-six million, two hundred twelve thousand, three hundred eighty".