3100055040 has 240 divisors, whose sum is σ = 10806661008. Its totient is φ = 821280768.

The previous prime is 3100055017. The next prime is 3100055051. The reversal of 3100055040 is 405500013.

It is a tau number, because it is divible by the number of its divisors (240).

It is a super-2 number, since 2×3100055040² = 19220682502058803200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4538539 + ... + 4539221.

Almost surely, 2^3100055040 is an apocalyptic number.

3100055040 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 3100055040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5403330504).

3100055040 is an abundant number, since it is smaller than the sum of its proper divisors (7706605968).

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

3100055040 is a wasteful number, since it uses less digits than its factorization.

3100055040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909 (or 890 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 3100055040 is about 55678.1378998975. The cubic root of 3100055040 is about 1458.1083652175.

Adding to 3100055040 its reverse (405500013), we get a palindrome (3505555053).

The spelling of 3100055040 in words is "three billion, one hundred million, fifty-five thousand, forty".