1520424237940 has 24 divisors (see below), whose sum is σ = 3197142450432. Its totient is φ = 607359876000.

The previous prime is 1520424237889. The next prime is 1520424237949. The reversal of 1520424237940 is 497324240251.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1520424237949) 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 7 ways as a sum of consecutive naturals, for example, 50598304 + ... + 50628343.

It is an arithmetic number, because the mean of its divisors is an integer number (133214268768).

Almost surely, 2^{1520424237940} is an apocalyptic number.

1520424237940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1520424237940 is an abundant number, since it is smaller than the sum of its proper divisors (1676718212492).

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

1520424237940 is a wasteful number, since it uses less digits than its factorization.

1520424237940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101227407 (or 101227405 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 43.

The spelling of 1520424237940 in words is "one trillion, five hundred twenty billion, four hundred twenty-four million, two hundred thirty-seven thousand, nine hundred forty".