11651472 has 80 divisors (see below), whose sum is σ = 38231680. Its totient is φ = 3328128.

The previous prime is 11651459. The next prime is 11651483. The reversal of 11651472 is 27415611.

It is a happy number.

11651472 is a `hidden beast` number, since 1 + 1 + 651 + 4 + 7 + 2 = 666.

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

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, 1098 + ... + 4950.

It is an arithmetic number, because the mean of its divisors is an integer number (477896).

Almost surely, 2^11651472 is an apocalyptic number.

11651472 is a gapful number since it is divisible by the number (12) 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 11651472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19115840).

11651472 is an abundant number, since it is smaller than the sum of its proper divisors (26580208).

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

11651472 is a wasteful number, since it uses less digits than its factorization.

11651472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3877 (or 3865 counting only the distinct ones).

The product of its digits is 1680, while the sum is 27.

The square root of 11651472 is about 3413.4252591788. The cubic root of 11651472 is about 226.7045649818.

The spelling of 11651472 in words is "eleven million, six hundred fifty-one thousand, four hundred seventy-two".