1020542427740 has 72 divisors (see below), whose sum is σ = 2366060545296. Its totient is φ = 369471308800.

The previous prime is 1020542427731. The next prime is 1020542427743. The reversal of 1020542427740 is 477242450201.

1020542427740 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 1020542427694 and 1020542427703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020542427743) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 379541 + ... + 1478220.

It is an arithmetic number, because the mean of its divisors is an integer number (32861952018).

Almost surely, 2^{1020542427740} is an apocalyptic number.

1020542427740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020542427740 is an abundant number, since it is smaller than the sum of its proper divisors (1345518117556).

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

1020542427740 is a wasteful number, since it uses less digits than its factorization.

1020542427740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1858019 (or 1858006 counting only the distinct ones).

The product of its (nonzero) digits is 125440, while the sum is 38.

Adding to 1020542427740 its reverse (477242450201), we get a palindrome (1497784877941).

The spelling of 1020542427740 in words is "one trillion, twenty billion, five hundred forty-two million, four hundred twenty-seven thousand, seven hundred forty".