40640051230 has 16 divisors (see below), whose sum is σ = 73283434560. Its totient is φ = 16226833312.

The previous prime is 40640051203. The next prime is 40640051239. The reversal of 40640051230 is 3215004604.

It is a super-2 number, since 2×40640051230² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40640051195 and 40640051204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40640051239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3642550 + ... + 3653689.

It is an arithmetic number, because the mean of its divisors is an integer number (4580214660).

Almost surely, 2^40640051230 is an apocalyptic number.

40640051230 is a deficient number, since it is larger than the sum of its proper divisors (32643383330).

40640051230 is a wasteful number, since it uses less digits than its factorization.

40640051230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7296803.

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 40640051230 its reverse (3215004604), we get a palindrome (43855055834).

The spelling of 40640051230 in words is "forty billion, six hundred forty million, fifty-one thousand, two hundred thirty".