111343640 has 32 divisors (see below), whose sum is σ = 250825680. Its totient is φ = 44483712.

The previous prime is 111343633. The next prime is 111343643. The reversal of 111343640 is 46343111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111343643) 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, 58382 + ... + 60258.

Almost surely, 2^111343640 is an apocalyptic number.

111343640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111343640 is an abundant number, since it is smaller than the sum of its proper divisors (139482040).

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

111343640 is a wasteful number, since it uses less digits than its factorization.

111343640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3371 (or 3367 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 111343640 is about 10551.9495828970. The cubic root of 111343640 is about 481.0849877849.

Adding to 111343640 its reverse (46343111), we get a palindrome (157686751).

The spelling of 111343640 in words is "one hundred eleven million, three hundred forty-three thousand, six hundred forty".