1401328416 has 48 divisors (see below), whose sum is σ = 3712262400. Its totient is φ = 462820608.

The previous prime is 1401328403. The next prime is 1401328469. The reversal of 1401328416 is 6148231041.

It is a tau number, because it is divible by the number of its divisors (48).

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, 56496 + ... + 77423.

It is an arithmetic number, because the mean of its divisors is an integer number (77338800).

Almost surely, 2^1401328416 is an apocalyptic number.

1401328416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1401328416 is an abundant number, since it is smaller than the sum of its proper divisors (2310933984).

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

1401328416 is a wasteful number, since it uses less digits than its factorization.

1401328416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134041 (or 134033 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 1401328416 is about 37434.3213642240. The cubic root of 1401328416 is about 1119.0426598205.

Adding to 1401328416 its reverse (6148231041), we get a palindrome (7549559457).

The spelling of 1401328416 in words is "one billion, four hundred one million, three hundred twenty-eight thousand, four hundred sixteen".