1440648242730 has 48 divisors (see below), whose sum is σ = 3774278480544. Its totient is φ = 381240244320.

The previous prime is 1440648242707. The next prime is 1440648242767. The reversal of 1440648242730 is 372428460441.

1440648242730 is a `hidden beast` number, since 1 + 440 + 64 + 82 + 4 + 2 + 73 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 61084404 + ... + 61107983.

It is an arithmetic number, because the mean of its divisors is an integer number (78630801678).

Almost surely, 2^{1440648242730} is an apocalyptic number.

1440648242730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1440648242730 is an abundant number, since it is smaller than the sum of its proper divisors (2333630237814).

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

1440648242730 is a wasteful number, since it uses less digits than its factorization.

1440648242730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122192531 (or 122192528 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 45.

The spelling of 1440648242730 in words is "one trillion, four hundred forty billion, six hundred forty-eight million, two hundred forty-two thousand, seven hundred thirty".