6427498220 has 144 divisors (see below), whose sum is σ = 16820116320. Its totient is φ = 2043740160.

The previous prime is 6427498211. The next prime is 6427498249. The reversal of 6427498220 is 228947246.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 592364 + ... + 603116.

Almost surely, 2^6427498220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6427498220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8410058160).

6427498220 is an abundant number, since it is smaller than the sum of its proper divisors (10392618100).

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

6427498220 is a wasteful number, since it uses less digits than its factorization.

6427498220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10816 (or 10803 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 44.

The square root of 6427498220 is about 80171.6796630830. The cubic root of 6427498220 is about 1859.2908056672.

The spelling of 6427498220 in words is "six billion, four hundred twenty-seven million, four hundred ninety-eight thousand, two hundred twenty".