2135426420 has 24 divisors (see below), whose sum is σ = 4516663200. Its totient is φ = 848024352.

The previous prime is 2135426401. The next prime is 2135426431. The reversal of 2135426420 is 246245312.

2135426420 = T₂₅₆ + T₂₅₇ + ... + T₂₃₄₀.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 381290 + ... + 386849.

It is an arithmetic number, because the mean of its divisors is an integer number (188194300).

Almost surely, 2^2135426420 is an apocalyptic number.

2135426420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2135426420 is an abundant number, since it is smaller than the sum of its proper divisors (2381236780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2135426420 is a wasteful number, since it uses less digits than its factorization.

2135426420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768287 (or 768285 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 2135426420 is about 46210.6743079994. The cubic root of 2135426420 is about 1287.7400528926.

It can be divided in two parts, 21354 and 26420, that added together give a palindrome (47774).

The spelling of 2135426420 in words is "two billion, one hundred thirty-five million, four hundred twenty-six thousand, four hundred twenty".