11621445 has 48 divisors (see below), whose sum is σ = 21577920. Its totient is φ = 5322240.

The previous prime is 11621443. The next prime is 11621447. The reversal of 11621445 is 54412611.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (11621443) and next prime (11621447).

It is not a de Polignac number, because 11621445 - 2¹ = 11621443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11621443) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 34317 + ... + 34653.

It is an arithmetic number, because the mean of its divisors is an integer number (449540).

Almost surely, 2^11621445 is an apocalyptic number.

11621445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11621445 is a deficient number, since it is larger than the sum of its proper divisors (9956475).

11621445 is a wasteful number, since it uses less digits than its factorization.

11621445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386 (or 375 counting only the distinct ones).

The product of its digits is 960, while the sum is 24.

The square root of 11621445 is about 3409.0240538899. The cubic root of 11621445 is about 226.5096507250.

The spelling of 11621445 in words is "eleven million, six hundred twenty-one thousand, four hundred forty-five".