1672470405 has 12 divisors (see below), whose sum is σ = 2898948780. Its totient is φ = 891984192.

The previous prime is 1672470403. The next prime is 1672470409. The reversal of 1672470405 is 5040742761.

1672470405 is a `hidden beast` number, since 1 + 6 + 7 + 247 + 0 + 405 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 922093956 + 750376449 = 30366^2 + 27393^2 .

It is not a de Polignac number, because 1672470405 - 2¹ = 1672470403 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1672470405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1672470403) 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, 18582960 + ... + 18583049.

It is an arithmetic number, because the mean of its divisors is an integer number (241579065).

Almost surely, 2^1672470405 is an apocalyptic number.

1672470405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1672470405 is a deficient number, since it is larger than the sum of its proper divisors (1226478375).

1672470405 is a wasteful number, since it uses less digits than its factorization.

1672470405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37166020 (or 37166017 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 1672470405 is about 40895.8482611622. The cubic root of 1672470405 is about 1187.0057256720.

The spelling of 1672470405 in words is "one billion, six hundred seventy-two million, four hundred seventy thousand, four hundred five".