3149904240 has 240 divisors, whose sum is σ = 12621468960. Its totient is φ = 719953920.

The previous prime is 3149904217. The next prime is 3149904269. The reversal of 3149904240 is 424099413.

3149904240 is a `hidden beast` number, since 3 + 149 + 90 + 424 + 0 = 666.

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

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 3149904195 and 3149904204.

It is a congruent number.

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, 90960 + ... + 120720.

It is an arithmetic number, because the mean of its divisors is an integer number (52589454).

Almost surely, 2^3149904240 is an apocalyptic number.

3149904240 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 3149904240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6310734480).

3149904240 is an abundant number, since it is smaller than the sum of its proper divisors (9471564720).

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

3149904240 is a wasteful number, since it uses less digits than its factorization.

3149904240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29797 (or 29778 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 3149904240 is about 56124.0076972413. The cubic root of 3149904240 is about 1465.8823543027.

The spelling of 3149904240 in words is "three billion, one hundred forty-nine million, nine hundred four thousand, two hundred forty".