1401057616 has 40 divisors (see below), whose sum is σ = 3104257664. Its totient is φ = 600082560.

The previous prime is 1401057613. The next prime is 1401057629. The reversal of 1401057616 is 6167501041.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401057613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 256126 + ... + 261538.

Almost surely, 2^1401057616 is an apocalyptic number.

1401057616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1401057616 is an abundant number, since it is smaller than the sum of its proper divisors (1703200048).

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

1401057616 is a wasteful number, since it uses less digits than its factorization.

1401057616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7739 (or 7733 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 1401057616 is about 37430.7041878723. The cubic root of 1401057616 is about 1118.9705719666.

Adding to 1401057616 its reverse (6167501041), we get a palindrome (7568558657).

The spelling of 1401057616 in words is "one billion, four hundred one million, fifty-seven thousand, six hundred sixteen".