6401220262 has 8 divisors (see below), whose sum is σ = 9604503216. Its totient is φ = 3199719192.

The previous prime is 6401220233. The next prime is 6401220311. The reversal of 6401220262 is 2620221046.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 436453 + ... + 450880.

It is an arithmetic number, because the mean of its divisors is an integer number (1200562902).

Almost surely, 2^6401220262 is an apocalyptic number.

6401220262 is a deficient number, since it is larger than the sum of its proper divisors (3203282954).

6401220262 is a wasteful number, since it uses less digits than its factorization.

6401220262 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 890942.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 6401220262 is about 80007.6262739997. The cubic root of 6401220262 is about 1856.7535249980.

The spelling of 6401220262 in words is "six billion, four hundred one million, two hundred twenty thousand, two hundred sixty-two".