3604491345 has 256 divisors, whose sum is σ = 7942717440. Its totient is φ = 1353977856.

The previous prime is 3604491313. The next prime is 3604491347. The reversal of 3604491345 is 5431944063.

3604491345 = T₈₈₅₅ + T₈₈₅₆ + ... + T₈₉₄₅.

It is not a de Polignac number, because 3604491345 - 2⁵ = 3604491313 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

Together with 4338226095 it forms an amicable pair .

It is not an unprimeable number, because it can be changed into a prime (3604491347) by changing a digit.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 33686782 + ... + 33686888.

It is an arithmetic number, because the mean of its divisors is an integer number (31026240).

Almost surely, 2^3604491345 is an apocalyptic number.

3604491345 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3604491345 is an abundant number, since it is smaller than the sum of its proper divisors (4338226095).

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

3604491345 is a wasteful number, since it uses less digits than its factorization.

3604491345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224.

The product of its (nonzero) digits is 155520, while the sum is 39.

The square root of 3604491345 is about 60037.4162085611. The cubic root of 3604491345 is about 1533.2559628835.

The spelling of 3604491345 in words is "three billion, six hundred four million, four hundred ninety-one thousand, three hundred forty-five".