1520132040 has 96 divisors (see below), whose sum is σ = 5646214080. Its totient is φ = 347458176.

The previous prime is 1520132023. The next prime is 1520132041. The reversal of 1520132040 is 402310251.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1520132041) 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, 299094 + ... + 304133.

It is an arithmetic number, because the mean of its divisors is an integer number (58814730).

Almost surely, 2^1520132040 is an apocalyptic number.

1520132040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1520132040 is an abundant number, since it is smaller than the sum of its proper divisors (4126082040).

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

1520132040 is a wasteful number, since it uses less digits than its factorization.

1520132040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 603251 (or 603244 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 1520132040 is about 38988.8707197323. The cubic root of 1520132040 is about 1149.8127079991.

Adding to 1520132040 its reverse (402310251), we get a palindrome (1922442291).

The spelling of 1520132040 in words is "one billion, five hundred twenty million, one hundred thirty-two thousand, forty".