11913140 has 24 divisors (see below), whose sum is σ = 25214112. Its totient is φ = 4727840.

The previous prime is 11913131. The next prime is 11913163. The reversal of 11913140 is 4131911.

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

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, 347 + ... + 4893.

It is an arithmetic number, because the mean of its divisors is an integer number (1050588).

Almost surely, 2^11913140 is an apocalyptic number.

11913140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11913140 is an abundant number, since it is smaller than the sum of its proper divisors (13300972).

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

11913140 is a wasteful number, since it uses less digits than its factorization.

11913140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4687 (or 4685 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 20.

The square root of 11913140 is about 3451.5416845230. The cubic root of 11913140 is about 228.3891221178.

The spelling of 11913140 in words is "eleven million, nine hundred thirteen thousand, one hundred forty".