126778028 has 36 divisors (see below), whose sum is σ = 242326560. Its totient is φ = 57691200.

The previous prime is 126777997. The next prime is 126778031. The reversal of 126778028 is 820877621.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 530333 + ... + 530571.

Almost surely, 2^126778028 is an apocalyptic number.

It is an amenable number.

126778028 is a deficient number, since it is larger than the sum of its proper divisors (115548532).

126778028 is a wasteful number, since it uses less digits than its factorization.

126778028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 458 (or 355 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 41.

The square root of 126778028 is about 11259.5749475724. The cubic root of 126778028 is about 502.3595515176.

The spelling of 126778028 in words is "one hundred twenty-six million, seven hundred seventy-eight thousand, twenty-eight".