3149672440 has 32 divisors (see below), whose sum is σ = 7394885280. Its totient is φ = 1205091712.

The previous prime is 3149672423. The next prime is 3149672453. The reversal of 3149672440 is 442769413.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 3149672393 and 3149672402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1710859 + ... + 1712698.

It is an arithmetic number, because the mean of its divisors is an integer number (231090165).

Almost surely, 2^3149672440 is an apocalyptic number.

It is an amenable number.

3149672440 is an abundant number, since it is smaller than the sum of its proper divisors (4245212840).

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

3149672440 is a wasteful number, since it uses less digits than its factorization.

3149672440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3423591 (or 3423587 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 40.

The square root of 3149672440 is about 56121.9425893295. The cubic root of 3149672440 is about 1465.8463955518.

The spelling of 3149672440 in words is "three billion, one hundred forty-nine million, six hundred seventy-two thousand, four hundred forty".