2990386 has 8 divisors (see below), whose sum is σ = 5126400. Its totient is φ = 1281588.

The previous prime is 2990381. The next prime is 2990401. The reversal of 2990386 is 6830992.

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

It is not an unprimeable number, because it can be changed into a prime (2990381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106786 + ... + 106813.

It is an arithmetic number, because the mean of its divisors is an integer number (640800).

2^2990386 is an apocalyptic number.

2990386 is a deficient number, since it is larger than the sum of its proper divisors (2136014).

2990386 is a wasteful number, since it uses less digits than its factorization.

2990386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213608.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 2990386 is about 1729.2732577589. The cubic root of 2990386 is about 144.0707278581.

Subtracting 2990386 from its reverse (6830992), we obtain a triangular number (3840606 = T₂₇₇₁).

The spelling of 2990386 in words is "two million, nine hundred ninety thousand, three hundred eighty-six".