6401622460 has 24 divisors (see below), whose sum is σ = 13502638800. Its totient is φ = 2549366784.

The previous prime is 6401622431. The next prime is 6401622467. The reversal of 6401622460 is 642261046.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6401622467) 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, 700485 + ... + 709564.

It is an arithmetic number, because the mean of its divisors is an integer number (562609950).

Almost surely, 2^6401622460 is an apocalyptic number.

It is an amenable number.

6401622460 is an abundant number, since it is smaller than the sum of its proper divisors (7101016340).

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

6401622460 is a wasteful number, since it uses less digits than its factorization.

6401622460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1410285 (or 1410283 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 6401622460 is about 80010.1397324114. The cubic root of 6401622460 is about 1856.7924116937.

The spelling of 6401622460 in words is "six billion, four hundred one million, six hundred twenty-two thousand, four hundred sixty".