1520055340 has 48 divisors (see below), whose sum is σ = 3435342624. Its totient is φ = 562867200.

The previous prime is 1520055337. The next prime is 1520055373. The reversal of 1520055340 is 435500251.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15906 + ... + 57385.

It is an arithmetic number, because the mean of its divisors is an integer number (71569638).

Almost surely, 2^1520055340 is an apocalyptic number.

1520055340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1520055340 is an abundant number, since it is smaller than the sum of its proper divisors (1915287284).

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

1520055340 is a wasteful number, since it uses less digits than its factorization.

1520055340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73378 (or 73376 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 1520055340 is about 38987.8870933012. The cubic root of 1520055340 is about 1149.7933693023.

Adding to 1520055340 its reverse (435500251), we get a palindrome (1955555591).

The spelling of 1520055340 in words is "one billion, five hundred twenty million, fifty-five thousand, three hundred forty".