11621040 has 80 divisors (see below), whose sum is σ = 36935136. Its totient is φ = 3020800.

The previous prime is 11621039. The next prime is 11621119. The reversal of 11621040 is 4012611.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9250 + ... + 10430.

Almost surely, 2^11621040 is an apocalyptic number.

11621040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11621040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18467568).

11621040 is an abundant number, since it is smaller than the sum of its proper divisors (25314096).

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

11621040 is a wasteful number, since it uses less digits than its factorization.

11621040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1238 (or 1232 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 11621040 is about 3408.9646522075. The cubic root of 11621040 is about 226.5070194551.

Adding to 11621040 its reverse (4012611), we get a palindrome (15633651).

The spelling of 11621040 in words is "eleven million, six hundred twenty-one thousand, forty".