126324240 has 80 divisors (see below), whose sum is σ = 447554688. Its totient is φ = 28873728.

The previous prime is 126324221. The next prime is 126324269. The reversal of 126324240 is 42423621.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×126324240² = 31915627223155200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 126324240.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35917 + ... + 39276.

Almost surely, 2^126324240 is an apocalyptic number.

126324240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

126324240 is an abundant number, since it is smaller than the sum of its proper divisors (321230448).

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

126324240 is a wasteful number, since it uses less digits than its factorization.

126324240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75216 (or 75210 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 126324240 is about 11239.4056782376. The cubic root of 126324240 is about 501.7594547093.

Adding to 126324240 its reverse (42423621), we get a palindrome (168747861).

The spelling of 126324240 in words is "one hundred twenty-six million, three hundred twenty-four thousand, two hundred forty".