3729780448 has 24 divisors (see below), whose sum is σ = 7481555928. Its totient is φ = 1829702784.

The previous prime is 3729780443. The next prime is 3729780493. The reversal of 3729780448 is 8440879273.

It is a super-2 number, since 2×3729780448² = 27822524380566161408, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3729780395 and 3729780404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3729780443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1097886 + ... + 1101277.

It is an arithmetic number, because the mean of its divisors is an integer number (311731497).

Almost surely, 2^3729780448 is an apocalyptic number.

It is an amenable number.

3729780448 is an abundant number, since it is smaller than the sum of its proper divisors (3751775480).

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

3729780448 is a wasteful number, since it uses less digits than its factorization.

3729780448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2199226 (or 2199218 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 52.

The square root of 3729780448 is about 61071.9284778203. The cubic root of 3729780448 is about 1550.8189148887.

The spelling of 3729780448 in words is "three billion, seven hundred twenty-nine million, seven hundred eighty thousand, four hundred forty-eight".