1920270672 has 80 divisors (see below), whose sum is σ = 5517504000. Its totient is φ = 639438336.

The previous prime is 1920270661. The next prime is 1920270679. The reversal of 1920270672 is 2760720291.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1920270679) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 620104 + ... + 623192.

It is an arithmetic number, because the mean of its divisors is an integer number (68968800).

Almost surely, 2^1920270672 is an apocalyptic number.

1920270672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1920270672 is an abundant number, since it is smaller than the sum of its proper divisors (3597233328).

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

1920270672 is a wasteful number, since it uses less digits than its factorization.

1920270672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4545 (or 4533 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 1920270672 is about 43820.8930990686. The cubic root of 1920270672 is about 1242.9514052509.

The spelling of 1920270672 in words is "one billion, nine hundred twenty million, two hundred seventy thousand, six hundred seventy-two".