126220404 has 12 divisors (see below), whose sum is σ = 294514304. Its totient is φ = 42073464.

The previous prime is 126220397. The next prime is 126220421. The reversal of 126220404 is 404022621.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5259172 + ... + 5259195.

Almost surely, 2^126220404 is an apocalyptic number.

It is an amenable number.

126220404 is an abundant number, since it is smaller than the sum of its proper divisors (168293900).

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

126220404 is a wasteful number, since it uses less digits than its factorization.

126220404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10518374 (or 10518372 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 126220404 is about 11234.7854452143. The cubic root of 126220404 is about 501.6219382767.

The spelling of 126220404 in words is "one hundred twenty-six million, two hundred twenty thousand, four hundred four".