2215400385 has 16 divisors (see below), whose sum is σ = 3866880960. Its totient is φ = 1074133440.

The previous prime is 2215400321. The next prime is 2215400389. The reversal of 2215400385 is 5830045122.

It is not a de Polignac number, because 2215400385 - 2⁶ = 2215400321 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2215400389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6713170 + ... + 6713499.

It is an arithmetic number, because the mean of its divisors is an integer number (241680060).

Almost surely, 2^2215400385 is an apocalyptic number.

It is an amenable number.

2215400385 is a deficient number, since it is larger than the sum of its proper divisors (1651480575).

2215400385 is a wasteful number, since it uses less digits than its factorization.

2215400385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13426688.

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 2215400385 is about 47068.0399528172. The cubic root of 2215400385 is about 1303.6191821547.

The spelling of 2215400385 in words is "two billion, two hundred fifteen million, four hundred thousand, three hundred eighty-five".