6450072 has 32 divisors (see below), whose sum is σ = 17074800. Its totient is φ = 2023424.

The previous prime is 6450049. The next prime is 6450083. The reversal of 6450072 is 2700546.

It is a happy number.

It is a super-3 number, since 3×6450072³ (a number of 21 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 7497 + ... + 8312.

Almost surely, 2^6450072 is an apocalyptic number.

It is an amenable number.

6450072 is an abundant number, since it is smaller than the sum of its proper divisors (10624728).

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

6450072 is a wasteful number, since it uses less digits than its factorization.

6450072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15835 (or 15831 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 6450072 is about 2539.6991947867. The cubic root of 6450072 is about 186.1464911393.

The spelling of 6450072 in words is "six million, four hundred fifty thousand, seventy-two".