1672948784 has 160 divisors (see below), whose sum is σ = 4001618880. Its totient is φ = 668860416.

The previous prime is 1672948777. The next prime is 1672948787. The reversal of 1672948784 is 4878492761.

It is a Smith number, since the sum of its digits (56) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1672948787) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2485472 + ... + 2486144.

It is an arithmetic number, because the mean of its divisors is an integer number (25010118).

Almost surely, 2^1672948784 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1672948784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2000809440).

1672948784 is an abundant number, since it is smaller than the sum of its proper divisors (2328670096).

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

1672948784 is a wasteful number, since it uses less digits than its factorization.

1672948784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 767 (or 761 counting only the distinct ones).

The product of its digits is 5419008, while the sum is 56.

The square root of 1672948784 is about 40901.6965907284. The cubic root of 1672948784 is about 1187.1188885077.

The spelling of 1672948784 in words is "one billion, six hundred seventy-two million, nine hundred forty-eight thousand, seven hundred eighty-four".