5401307440 has 20 divisors (see below), whose sum is σ = 12558039984. Its totient is φ = 2160522944.

The previous prime is 5401307423. The next prime is 5401307447. The reversal of 5401307440 is 447031045.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×5401307440² = 58348244122798707200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5401307399 and 5401307408.

It is not an unprimeable number, because it can be changed into a prime (5401307447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33758092 + ... + 33758251.

Almost surely, 2^5401307440 is an apocalyptic number.

It is an amenable number.

5401307440 is an abundant number, since it is smaller than the sum of its proper divisors (7156732544).

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

5401307440 is a wasteful number, since it uses less digits than its factorization.

5401307440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67516356 (or 67516350 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 5401307440 is about 73493.5877475035. The cubic root of 5401307440 is about 1754.5522232705.

Adding to 5401307440 its reverse (447031045), we get a palindrome (5848338485).

The spelling of 5401307440 in words is "five billion, four hundred one million, three hundred seven thousand, four hundred forty".