401244580 has 96 divisors (see below), whose sum is σ = 967438080. Its totient is φ = 138432000.

The previous prime is 401244577. The next prime is 401244583. The reversal of 401244580 is 85442104.

It is an interprime number because it is at equal distance from previous prime (401244577) and next prime (401244583).

It is not an unprimeable number, because it can be changed into a prime (401244583) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 388665 + ... + 389695.

It is an arithmetic number, because the mean of its divisors is an integer number (10077480).

Almost surely, 2^401244580 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 401244580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (483719040).

401244580 is an abundant number, since it is smaller than the sum of its proper divisors (566193500).

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

401244580 is a wasteful number, since it uses less digits than its factorization.

401244580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1141 (or 1139 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 28.

The square root of 401244580 is about 20031.0903347771. The cubic root of 401244580 is about 737.5696871811.

Adding to 401244580 its reverse (85442104), we get a palindrome (486686684).

The spelling of 401244580 in words is "four hundred one million, two hundred forty-four thousand, five hundred eighty".