3525390642 has 32 divisors (see below), whose sum is σ = 7450490880. Its totient is φ = 1109805840.

The previous prime is 3525390607. The next prime is 3525390643. The reversal of 3525390642 is 2460935253.

It is a self number, because there is not a number n which added to its sum of digits gives 3525390642.

It is not an unprimeable number, because it can be changed into a prime (3525390643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 150784 + ... + 172587.

It is an arithmetic number, because the mean of its divisors is an integer number (232827840).

Almost surely, 2^3525390642 is an apocalyptic number.

3525390642 is an abundant number, since it is smaller than the sum of its proper divisors (3925100238).

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

3525390642 is a wasteful number, since it uses less digits than its factorization.

3525390642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323478.

The product of its (nonzero) digits is 194400, while the sum is 39.

The square root of 3525390642 is about 59375.0001431579. Note that the first 3 decimals coincide. The cubic root of 3525390642 is about 1521.9571168494.

The spelling of 3525390642 in words is "three billion, five hundred twenty-five million, three hundred ninety thousand, six hundred forty-two".