3603099780 has 192 divisors, whose sum is σ = 13253184000. Its totient is φ = 795142656.

The previous prime is 3603099769. The next prime is 3603099781. The reversal of 3603099780 is 879903063.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (3603099781) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 93186 + ... + 126054.

It is an arithmetic number, because the mean of its divisors is an integer number (69027000).

Almost surely, 2^3603099780 is an apocalyptic number.

3603099780 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3603099780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6626592000).

3603099780 is an abundant number, since it is smaller than the sum of its proper divisors (9650084220).

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

3603099780 is a wasteful number, since it uses less digits than its factorization.

3603099780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32923 (or 32915 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The square root of 3603099780 is about 60025.8259418394. The cubic root of 3603099780 is about 1533.0586257504.

The spelling of 3603099780 in words is "three billion, six hundred three million, ninety-nine thousand, seven hundred eighty".