5402001440 has 72 divisors (see below), whose sum is σ = 14027954220. Its totient is φ = 1964357120.

The previous prime is 5402001439. The next prime is 5402001487. The reversal of 5402001440 is 441002045.

It can be written as a sum of positive squares in 2 ways, for example, as 4361809936 + 1040191504 = 66044^2 + 32252^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 120155 + ... + 158874.

Almost surely, 2^5402001440 is an apocalyptic number.

It is an amenable number.

5402001440 is an abundant number, since it is smaller than the sum of its proper divisors (8625952780).

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

5402001440 is a wasteful number, since it uses less digits than its factorization.

5402001440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279066 (or 279047 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 5402001440 is about 73498.3090961962. The cubic root of 5402001440 is about 1754.6273660089.

Adding to 5402001440 its reverse (441002045), we get a palindrome (5843003485).

The spelling of 5402001440 in words is "five billion, four hundred two million, one thousand, four hundred forty".