3357997840 has 40 divisors (see below), whose sum is σ = 7812446400. Its totient is φ = 1342321536.

The previous prime is 3357997829. The next prime is 3357997847. The reversal of 3357997840 is 487997533.

It is a happy number.

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

It is a super-2 number, since 2×3357997840² = 22552298986889331200, which contains 22 as substring.

It is a hoax number, since the sum of its digits (55) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (3357997847) 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, 117261 + ... + 143059.

It is an arithmetic number, because the mean of its divisors is an integer number (195311160).

Almost surely, 2^3357997840 is an apocalyptic number.

It is an amenable number.

3357997840 is an abundant number, since it is smaller than the sum of its proper divisors (4454448560).

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

3357997840 is a wasteful number, since it uses less digits than its factorization.

3357997840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27439 (or 27433 counting only the distinct ones).

The product of its (nonzero) digits is 5715360, while the sum is 55.

The square root of 3357997840 is about 57948.2341404809. The cubic root of 3357997840 is about 1497.4769199056.

The spelling of 3357997840 in words is "three billion, three hundred fifty-seven million, nine hundred ninety-seven thousand, eight hundred forty".