3399779440 has 40 divisors (see below), whose sum is σ = 8320516560. Its totient is φ = 1288336896.

The previous prime is 3399779437. The next prime is 3399779443. The reversal of 3399779440 is 449779933.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3399779437) and next prime (3399779443).

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3399779443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1116829 + ... + 1119868.

It is an arithmetic number, because the mean of its divisors is an integer number (208012914).

Almost surely, 2^3399779440 is an apocalyptic number.

It is an amenable number.

3399779440 is an abundant number, since it is smaller than the sum of its proper divisors (4920737120).

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

3399779440 is a wasteful number, since it uses less digits than its factorization.

3399779440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2236729 (or 2236723 counting only the distinct ones).

The product of its (nonzero) digits is 5143824, while the sum is 55.

The square root of 3399779440 is about 58307.6276313828. The cubic root of 3399779440 is about 1503.6620803175.

It can be divided in two parts, 339 and 9779440, that added together give a palindrome (9779779).

The spelling of 3399779440 in words is "three billion, three hundred ninety-nine million, seven hundred seventy-nine thousand, four hundred forty".