2120378 has 8 divisors (see below), whose sum is σ = 3425268. Its totient is φ = 978624.

The previous prime is 2120353. The next prime is 2120383. The reversal of 2120378 is 8730212.

It can be written as a sum of positive squares in 2 ways, for example, as 2093809 + 26569 = 1447^2 + 163^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40751 + ... + 40802.

2^2120378 is an apocalyptic number.

2120378 is a deficient number, since it is larger than the sum of its proper divisors (1304890).

2120378 is a wasteful number, since it uses less digits than its factorization.

2120378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81568.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 2120378 is about 1456.1517778034. The cubic root of 2120378 is about 128.4708003925.

The spelling of 2120378 in words is "two million, one hundred twenty thousand, three hundred seventy-eight".