1270144650 has 24 divisors (see below), whose sum is σ = 3149959104. Its totient is φ = 338705200.

The previous prime is 1270144649. The next prime is 1270144657. The reversal of 1270144650 is 564410721.

It is a super-2 number, since 2×1270144650² = 3226534863847245000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (1270144657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4233666 + ... + 4233965.

It is an arithmetic number, because the mean of its divisors is an integer number (131248296).

Almost surely, 2^1270144650 is an apocalyptic number.

1270144650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1270144650 is an abundant number, since it is smaller than the sum of its proper divisors (1879814454).

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

1270144650 is a wasteful number, since it uses less digits than its factorization.

1270144650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8467646 (or 8467641 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 1270144650 is about 35639.0887930654. The cubic root of 1270144650 is about 1082.9732457418.

The spelling of 1270144650 in words is "one billion, two hundred seventy million, one hundred forty-four thousand, six hundred fifty".