2927420381 has 4 divisors (see below), whose sum is σ = 3054699552. Its totient is φ = 2800141212.

The previous prime is 2927420339. The next prime is 2927420387. The reversal of 2927420381 is 1830247292.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2927420381 - 2¹⁸ = 2927158237 is a prime.

It is a super-2 number, since 2×2927420381² = 17139580174188370322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2927420387) 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, 63639551 + ... + 63639596.

It is an arithmetic number, because the mean of its divisors is an integer number (763674888).

Almost surely, 2^2927420381 is an apocalyptic number.

It is an amenable number.

2927420381 is a deficient number, since it is larger than the sum of its proper divisors (127279171).

2927420381 is a wasteful number, since it uses less digits than its factorization.

2927420381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127279170.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 2927420381 is about 54105.6409351188. The cubic root of 2927420381 is about 1430.5236123474.

The spelling of 2927420381 in words is "two billion, nine hundred twenty-seven million, four hundred twenty thousand, three hundred eighty-one".