1879280640 has 264 divisors, whose sum is σ = 6897571200. Its totient is φ = 471465984.

The previous prime is 1879280609. The next prime is 1879280659. The reversal of 1879280640 is 460829781.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a zygodrome in base 2.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 782161 + ... + 784559.

Almost surely, 2^1879280640 is an apocalyptic number.

1879280640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1879280640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3448785600).

1879280640 is an abundant number, since it is smaller than the sum of its proper divisors (5018290560).

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

1879280640 is a wasteful number, since it uses less digits than its factorization.

1879280640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2447 (or 2426 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 1879280640 is about 43350.6705830487. The cubic root of 1879280640 is about 1234.0437209296.

The spelling of 1879280640 in words is "one billion, eight hundred seventy-nine million, two hundred eighty thousand, six hundred forty".