1520000240 has 40 divisors (see below), whose sum is σ = 3855275568. Its totient is φ = 552727040.

The previous prime is 1520000239. The next prime is 1520000263. The reversal of 1520000240 is 420000251.

It is a tau number, because it is divible by the number of its divisors (40).

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, 862757 + ... + 864516.

Almost surely, 2^1520000240 is an apocalyptic number.

1520000240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1520000240 is an abundant number, since it is smaller than the sum of its proper divisors (2335275328).

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

1520000240 is a wasteful number, since it uses less digits than its factorization.

1520000240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1727297 (or 1727291 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 1520000240 is about 38987.1804571708. The cubic root of 1520000240 is about 1149.7794763037.

Adding to 1520000240 its reverse (420000251), we get a palindrome (1940000491).

The spelling of 1520000240 in words is "one billion, five hundred twenty million, two hundred forty", and thus it is an aban number.