3521457090 has 96 divisors (see below), whose sum is σ = 9862235136. Its totient is φ = 869235840.

The previous prime is 3521457089. The next prime is 3521457097. The reversal of 3521457090 is 907541253.

3521457090 is a `hidden beast` number, since 3 + 521 + 45 + 7 + 0 + 90 = 666.

3521457090 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×3521457090² = 24801320073422536200, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3521457097) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 36732 + ... + 91608.

It is an arithmetic number, because the mean of its divisors is an integer number (102731616).

Almost surely, 2^3521457090 is an apocalyptic number.

3521457090 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3521457090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4931117568).

3521457090 is an abundant number, since it is smaller than the sum of its proper divisors (6340778046).

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

3521457090 is a wasteful number, since it uses less digits than its factorization.

3521457090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54944 (or 54941 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 36.

The square root of 3521457090 is about 59341.8662497229. The cubic root of 3521457090 is about 1521.3908509555.

The spelling of 3521457090 in words is "three billion, five hundred twenty-one million, four hundred fifty-seven thousand, ninety".