126650370 has 128 divisors (see below), whose sum is σ = 383201280. Its totient is φ = 26023680.

The previous prime is 126650341. The next prime is 126650393. The reversal of 126650370 is 73056621.

It is a super-2 number, since 2×126650370² = 32080632442273800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a nialpdrome in base 11.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 251539 + ... + 252041.

It is an arithmetic number, because the mean of its divisors is an integer number (2993760).

Almost surely, 2^126650370 is an apocalyptic number.

126650370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 126650370, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (191600640).

126650370 is an abundant number, since it is smaller than the sum of its proper divisors (256550910).

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

126650370 is a wasteful number, since it uses less digits than its factorization.

126650370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 126650370 is about 11253.9046557184. The cubic root of 126650370 is about 502.1908794067.

The spelling of 126650370 in words is "one hundred twenty-six million, six hundred fifty thousand, three hundred seventy".