6465420 has 120 divisors (see below), whose sum is σ = 21913584. Its totient is φ = 1586304.

The previous prime is 6465419. The next prime is 6465467. The reversal of 6465420 is 245646.

It is a happy number.

6465420 is a `hidden beast` number, since 6 + 4 + 654 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 20907 + ... + 21213.

Almost surely, 2^6465420 is an apocalyptic number.

6465420 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6465420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10956792).

6465420 is an abundant number, since it is smaller than the sum of its proper divisors (15448164).

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

6465420 is a wasteful number, since it uses less digits than its factorization.

6465420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341 (or 330 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 6465420 is about 2542.7190171153. The cubic root of 6465420 is about 186.2940198941.

The spelling of 6465420 in words is "six million, four hundred sixty-five thousand, four hundred twenty".