6406434252 has 36 divisors (see below), whose sum is σ = 16196598600. Its totient is φ = 2135140992.

The previous prime is 6406434197. The next prime is 6406434257. The reversal of 6406434252 is 2524346046.

6406434252 is a `hidden beast` number, since 6 + 4 + 0 + 643 + 4 + 2 + 5 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (6406434257) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 338143 + ... + 356585.

Almost surely, 2^6406434252 is an apocalyptic number.

It is an amenable number.

6406434252 is an abundant number, since it is smaller than the sum of its proper divisors (9790164348).

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

6406434252 is a wasteful number, since it uses less digits than its factorization.

6406434252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28102 (or 28097 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 36.

The square root of 6406434252 is about 80040.2039727536. The cubic root of 6406434252 is about 1857.2575157262.

The spelling of 6406434252 in words is "six billion, four hundred six million, four hundred thirty-four thousand, two hundred fifty-two".