1240445511342 has 16 divisors (see below), whose sum is σ = 2756545580880. Its totient is φ = 413481837096.

The previous prime is 1240445511307. The next prime is 1240445511377. The reversal of 1240445511342 is 2431155440421.

1240445511342 is a `hidden beast` number, since 1 + 24 + 0 + 44 + 551 + 1 + 3 + 42 = 666.

It is an interprime number because it is at equal distance from previous prime (1240445511307) and next prime (1240445511377).

It is a junction number, because it is equal to n+sod(n) for n = 1240445511297 and 1240445511306.

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, 11485606533 + ... + 11485606640.

It is an arithmetic number, because the mean of its divisors is an integer number (172284098805).

Almost surely, 2^{1240445511342} is an apocalyptic number.

1240445511342 is an abundant number, since it is smaller than the sum of its proper divisors (1516100069538).

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

1240445511342 is a wasteful number, since it uses less digits than its factorization.

1240445511342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22971213184 (or 22971213178 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 36.

The spelling of 1240445511342 in words is "one trillion, two hundred forty billion, four hundred forty-five million, five hundred eleven thousand, three hundred forty-two".