3545640126 has 72 divisors (see below), whose sum is σ = 8841321840. Its totient is φ = 1005975936.

The previous prime is 3545640089. The next prime is 3545640143. The reversal of 3545640126 is 6210465453.

3545640126 is a `hidden beast` number, since 3 + 5 + 4 + 5 + 640 + 1 + 2 + 6 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3513510 + ... + 3514518.

Almost surely, 2^3545640126 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3545640126, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4420660920).

3545640126 is an abundant number, since it is smaller than the sum of its proper divisors (5295681714).

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

3545640126 is a wasteful number, since it uses less digits than its factorization.

3545640126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1358 (or 1188 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The square root of 3545640126 is about 59545.2779488013. The cubic root of 3545640126 is about 1524.8655441432.

The spelling of 3545640126 in words is "three billion, five hundred forty-five million, six hundred forty thousand, one hundred twenty-six".