2987640348 has 144 divisors (see below), whose sum is σ = 8997609600. Its totient is φ = 762760320.

The previous prime is 2987640319. The next prime is 2987640353. The reversal of 2987640348 is 8430467892.

It is a super-2 number, since 2×2987640348² = 17851989697995122208, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2987640348.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 377698 + ... + 385526.

It is an arithmetic number, because the mean of its divisors is an integer number (62483400).

Almost surely, 2^2987640348 is an apocalyptic number.

2987640348 is a gapful number since it is divisible by the number (28) 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 2987640348, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4498804800).

2987640348 is an abundant number, since it is smaller than the sum of its proper divisors (6009969252).

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

2987640348 is a wasteful number, since it uses less digits than its factorization.

2987640348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7920 (or 7911 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 51.

The square root of 2987640348 is about 54659.3116312308. The cubic root of 2987640348 is about 1440.2662104281.

The spelling of 2987640348 in words is "two billion, nine hundred eighty-seven million, six hundred forty thousand, three hundred forty-eight".