2978860240 has 40 divisors (see below), whose sum is σ = 6930190368. Its totient is φ = 1190797440.

The previous prime is 2978860229. The next prime is 2978860243. The reversal of 2978860240 is 420688792.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2978860243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127035 + ... + 148645.

Almost surely, 2^2978860240 is an apocalyptic number.

2978860240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2978860240 is an abundant number, since it is smaller than the sum of its proper divisors (3951330128).

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

2978860240 is a wasteful number, since it uses less digits than its factorization.

2978860240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23347 (or 23341 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 46.

The square root of 2978860240 is about 54578.9358635729. The cubic root of 2978860240 is about 1438.8539363667.

The spelling of 2978860240 in words is "two billion, nine hundred seventy-eight million, eight hundred sixty thousand, two hundred forty".