1880340340 has 48 divisors (see below), whose sum is σ = 4112317440. Its totient is φ = 721405440.

The previous prime is 1880340337. The next prime is 1880340373. The reversal of 1880340340 is 430430881.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56641 + ... + 83479.

It is an arithmetic number, because the mean of its divisors is an integer number (85673280).

Almost surely, 2^1880340340 is an apocalyptic number.

1880340340 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 1880340340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2056158720).

1880340340 is an abundant number, since it is smaller than the sum of its proper divisors (2231977100).

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

1880340340 is a wasteful number, since it uses less digits than its factorization.

1880340340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26992 (or 26990 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 1880340340 is about 43362.8912781424. The cubic root of 1880340340 is about 1234.2756306613.

The spelling of 1880340340 in words is "one billion, eight hundred eighty million, three hundred forty thousand, three hundred forty".