207423040 has 112 divisors (see below), whose sum is σ = 544397184. Its totient is φ = 75271680.

The previous prime is 207423037. The next prime is 207423053. The reversal of 207423040 is 40324702.

It is a Harshad number since it is a multiple of its sum of digits (22).

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, 425677 + ... + 426163.

Almost surely, 2^207423040 is an apocalyptic number.

207423040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 207423040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (272198592).

207423040 is an abundant number, since it is smaller than the sum of its proper divisors (336974144).

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

207423040 is an equidigital number, since it uses as much as digits as its factorization.

207423040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 537 (or 505 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 22.

The square root of 207423040 is about 14402.1887225519. The cubic root of 207423040 is about 591.9508724755.

Adding to 207423040 its reverse (40324702), we get a palindrome (247747742).

The spelling of 207423040 in words is "two hundred seven million, four hundred twenty-three thousand, forty".