2135400038 has 24 divisors (see below), whose sum is σ = 3332701944. Its totient is φ = 1025619840.

The previous prime is 2135400037. The next prime is 2135400041. The reversal of 2135400038 is 8300045312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2135400037) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 316670 + ... + 323342.

It is an arithmetic number, because the mean of its divisors is an integer number (138862581).

Almost surely, 2^2135400038 is an apocalyptic number.

2135400038 is a deficient number, since it is larger than the sum of its proper divisors (1197301906).

2135400038 is an equidigital number, since it uses as much as digits as its factorization.

2135400038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6840 (or 6779 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 2135400038 is about 46210.3888535901. The cubic root of 2135400038 is about 1287.7347497678.

The spelling of 2135400038 in words is "two billion, one hundred thirty-five million, four hundred thousand, thirty-eight".