441161520 has 40 divisors (see below), whose sum is σ = 1367601456. Its totient is φ = 117643008.

The previous prime is 441161503. The next prime is 441161531. The reversal of 441161520 is 25161144.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 918847 + ... + 919326.

Almost surely, 2^441161520 is an apocalyptic number.

441161520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

441161520 is an abundant number, since it is smaller than the sum of its proper divisors (926439936).

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

441161520 is a wasteful number, since it uses less digits than its factorization.

441161520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1838189 (or 1838183 counting only the distinct ones).

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

The square root of 441161520 is about 21003.8453622188. The cubic root of 441161520 is about 761.2591776310.

The spelling of 441161520 in words is "four hundred forty-one million, one hundred sixty-one thousand, five hundred twenty".