1672407726 has 32 divisors (see below), whose sum is σ = 3651931008. Its totient is φ = 506367840.

The previous prime is 1672407719. The next prime is 1672407727. The reversal of 1672407726 is 6277042761.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1672407727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74361 + ... + 94203.

It is an arithmetic number, because the mean of its divisors is an integer number (114122844).

Almost surely, 2^1672407726 is an apocalyptic number.

1672407726 is an abundant number, since it is smaller than the sum of its proper divisors (1979523282).

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

1672407726 is a wasteful number, since it uses less digits than its factorization.

1672407726 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21136.

The product of its (nonzero) digits is 197568, while the sum is 42.

The square root of 1672407726 is about 40895.0819292491. The cubic root of 1672407726 is about 1186.9908970566.

The spelling of 1672407726 in words is "one billion, six hundred seventy-two million, four hundred seven thousand, seven hundred twenty-six".