3145550440 has 32 divisors (see below), whose sum is σ = 7079841000. Its totient is φ = 1257801984.

The previous prime is 3145550413. The next prime is 3145550459. The reversal of 3145550440 is 440555413.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2510611236 + 634939204 = 50106^2 + 25198^2 .

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, 127426 + ... + 150094.

Almost surely, 2^3145550440 is an apocalyptic number.

It is an amenable number.

3145550440 is an abundant number, since it is smaller than the sum of its proper divisors (3934290560).

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

3145550440 is a wasteful number, since it uses less digits than its factorization.

3145550440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26149 (or 26145 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 3145550440 is about 56085.2069622641. The cubic root of 3145550440 is about 1465.2066616633.

The spelling of 3145550440 in words is "three billion, one hundred forty-five million, five hundred fifty thousand, four hundred forty".