2237378421 has 16 divisors (see below), whose sum is σ = 3145725440. Its totient is φ = 1410585840.

The previous prime is 2237378399. The next prime is 2237378443. The reversal of 2237378421 is 1248737322.

It is an interprime number because it is at equal distance from previous prime (2237378399) and next prime (2237378443).

It is not a de Polignac number, because 2237378421 - 2¹³ = 2237370229 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2237378421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2237378491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1825 + ... + 66918.

It is an arithmetic number, because the mean of its divisors is an integer number (196607840).

Almost surely, 2^2237378421 is an apocalyptic number.

It is an amenable number.

2237378421 is a deficient number, since it is larger than the sum of its proper divisors (908347019).

2237378421 is a wasteful number, since it uses less digits than its factorization.

2237378421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69336.

The product of its digits is 112896, while the sum is 39.

The square root of 2237378421 is about 47300.9346736404. The cubic root of 2237378421 is about 1307.9158867952.

The spelling of 2237378421 in words is "two billion, two hundred thirty-seven million, three hundred seventy-eight thousand, four hundred twenty-one".