2076440378 has 4 divisors (see below), whose sum is σ = 3114660570. Its totient is φ = 1038220188.

The previous prime is 2076440371. The next prime is 2076440389. The reversal of 2076440378 is 8730446702.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8730446702 = 2 ⋅4365223351.

It can be written as a sum of positive squares in only one way, i.e., 1646168329 + 430272049 = 40573^2 + 20743^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2076440371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 519110093 + ... + 519110096.

Almost surely, 2^2076440378 is an apocalyptic number.

2076440378 is a deficient number, since it is larger than the sum of its proper divisors (1038220192).

2076440378 is a wasteful number, since it uses less digits than its factorization.

2076440378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1038220191.

The product of its (nonzero) digits is 225792, while the sum is 41.

The square root of 2076440378 is about 45567.9753555060. The cubic root of 2076440378 is about 1275.7722612037.

The spelling of 2076440378 in words is "two billion, seventy-six million, four hundred forty thousand, three hundred seventy-eight".