111424340 has 24 divisors (see below), whose sum is σ = 234414432. Its totient is φ = 44489120.

The previous prime is 111424337. The next prime is 111424349. The reversal of 111424340 is 43424111.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111424349) 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, 6995 + ... + 16485.

It is an arithmetic number, because the mean of its divisors is an integer number (9767268).

Almost surely, 2^111424340 is an apocalyptic number.

111424340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111424340 is an abundant number, since it is smaller than the sum of its proper divisors (122990092).

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

111424340 is a wasteful number, since it uses less digits than its factorization.

111424340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10087 (or 10085 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 111424340 is about 10555.7728281732. The cubic root of 111424340 is about 481.2011871557.

Adding to 111424340 its reverse (43424111), we get a palindrome (154848451).

It can be divided in two parts, 111424 and 340, that multiplied together give a triangular number (37884160 = T₈₇₀₄).

The spelling of 111424340 in words is "one hundred eleven million, four hundred twenty-four thousand, three hundred forty".