3397544640 has 336 divisors, whose sum is σ = 13470892032. Its totient is φ = 769886208.

The previous prime is 3397544621. The next prime is 3397544653. The reversal of 3397544640 is 464457933.

It is a tau number, because it is divible by the number of its divisors (336).

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

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2559657 + ... + 2560983.

Almost surely, 2^3397544640 is an apocalyptic number.

3397544640 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 3397544640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6735446016).

3397544640 is an abundant number, since it is smaller than the sum of its proper divisors (10073347392).

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

3397544640 is a wasteful number, since it uses less digits than its factorization.

3397544640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1484 (or 1471 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 45.

The square root of 3397544640 is about 58288.4606075679. The cubic root of 3397544640 is about 1503.3325373137.

The spelling of 3397544640 in words is "three billion, three hundred ninety-seven million, five hundred forty-four thousand, six hundred forty".