3120220400 has 60 divisors (see below), whose sum is σ = 8177825544. Its totient is φ = 1134624000.

The previous prime is 3120220343. The next prime is 3120220469. The reversal of 3120220400 is 40220213.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 350171 + ... + 358970.

Almost surely, 2^3120220400 is an apocalyptic number.

It is an amenable number.

3120220400 is an abundant number, since it is smaller than the sum of its proper divisors (5057605144).

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

3120220400 is a wasteful number, since it uses less digits than its factorization.

3120220400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 709170 (or 709159 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 3120220400 is about 55858.9330367131. The cubic root of 3120220400 is about 1461.2631215674.

Adding to 3120220400 its reverse (40220213), we get a palindrome (3160440613).

The spelling of 3120220400 in words is "three billion, one hundred twenty million, two hundred twenty thousand, four hundred".