4135551420 has 384 divisors, whose sum is σ = 15976138752. Its totient is φ = 771379200.

The previous prime is 4135551377. The next prime is 4135551439. The reversal of 4135551420 is 241555314.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2221290 + ... + 2223150.

It is an arithmetic number, because the mean of its divisors is an integer number (41604528).

Almost surely, 2^4135551420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4135551420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7988069376).

4135551420 is an abundant number, since it is smaller than the sum of its proper divisors (11840587332).

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

4135551420 is a wasteful number, since it uses less digits than its factorization.

4135551420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1941 (or 1939 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 4135551420 is about 64308.2531250850. The cubic root of 4135551420 is about 1605.1334367569.

It can be divided in two parts, 4135 and 551420, that added together give a palindrome (555555).

The spelling of 4135551420 in words is "four billion, one hundred thirty-five million, five hundred fifty-one thousand, four hundred twenty".