126389770 has 16 divisors (see below), whose sum is σ = 245001960. Its totient is φ = 46666944.

The previous prime is 126389737. The next prime is 126389777. The reversal of 126389770 is 77983621.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 102799321 + 23590449 = 10139^2 + 4857^2 .

It is not an unprimeable number, because it can be changed into a prime (126389777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 485985 + ... + 486244.

Almost surely, 2^126389770 is an apocalyptic number.

126389770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

126389770 is a deficient number, since it is larger than the sum of its proper divisors (118612190).

126389770 is a wasteful number, since it uses less digits than its factorization.

126389770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 972249.

The product of its (nonzero) digits is 127008, while the sum is 43.

The square root of 126389770 is about 11242.3204900056. The cubic root of 126389770 is about 501.8462013575.

The spelling of 126389770 in words is "one hundred twenty-six million, three hundred eighty-nine thousand, seven hundred seventy".