3575640628 has 48 divisors (see below), whose sum is σ = 7854981120. Its totient is φ = 1388638944.

The previous prime is 3575640623. The next prime is 3575640631. The reversal of 3575640628 is 8260465753.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3575640623) 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, 133876 + ... + 158347.

It is an arithmetic number, because the mean of its divisors is an integer number (163645440).

Almost surely, 2^3575640628 is an apocalyptic number.

3575640628 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

3575640628 is an abundant number, since it is smaller than the sum of its proper divisors (4279340492).

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

3575640628 is a wasteful number, since it uses less digits than its factorization.

3575640628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292276 (or 292274 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 46.

The square root of 3575640628 is about 59796.6606759943. The cubic root of 3575640628 is about 1529.1542206248.

The spelling of 3575640628 in words is "three billion, five hundred seventy-five million, six hundred forty thousand, six hundred twenty-eight".