126789402 has 8 divisors (see below), whose sum is σ = 253578816. Its totient is φ = 42263132.

The previous prime is 126789401. The next prime is 126789419. The reversal of 126789402 is 204987621.

It is a sphenic number, since it is the product of 3 distinct primes.

126789402 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (126789401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10565778 + ... + 10565789.

It is an arithmetic number, because the mean of its divisors is an integer number (31697352).

Almost surely, 2^126789402 is an apocalyptic number.

126789402 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

126789402 is a wasteful number, since it uses less digits than its factorization.

126789402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21131572.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 126789402 is about 11260.0800174777. The cubic root of 126789402 is about 502.3745742750.

The spelling of 126789402 in words is "one hundred twenty-six million, seven hundred eighty-nine thousand, four hundred two".