11972340 has 48 divisors (see below), whose sum is σ = 37248960. Its totient is φ = 3192480.

The previous prime is 11972333. The next prime is 11972341. The reversal of 11972340 is 4327911.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11972341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10546 + ... + 11625.

It is an arithmetic number, because the mean of its divisors is an integer number (776020).

Almost surely, 2^11972340 is an apocalyptic number.

11972340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11972340 is an abundant number, since it is smaller than the sum of its proper divisors (25276620).

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

11972340 is a wasteful number, since it uses less digits than its factorization.

11972340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22189 (or 22181 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 11972340 is about 3460.1069347637. The cubic root of 11972340 is about 228.7668087622.

The spelling of 11972340 in words is "eleven million, nine hundred seventy-two thousand, three hundred forty".