40111320 has 32 divisors (see below), whose sum is σ = 120334320. Its totient is φ = 10696320.

The previous prime is 40111319. The next prime is 40111339. The reversal of 40111320 is 2311104.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 40111296 and 40111305.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167011 + ... + 167250.

Almost surely, 2^40111320 is an apocalyptic number.

40111320 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40111320 is an abundant number, since it is smaller than the sum of its proper divisors (80223000).

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

40111320 is a wasteful number, since it uses less digits than its factorization.

40111320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334275 (or 334271 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 40111320 is about 6333.3498245399. The cubic root of 40111320 is about 342.3121530176.

Adding to 40111320 its reverse (2311104), we get a palindrome (42422424).

The spelling of 40111320 in words is "forty million, one hundred eleven thousand, three hundred twenty".