1350400520 has 32 divisors (see below), whose sum is σ = 3472459200. Its totient is φ = 462994368.

The previous prime is 1350400487. The next prime is 1350400529. The reversal of 1350400520 is 250040531.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1350400492 and 1350400501.

It is not an unprimeable number, because it can be changed into a prime (1350400529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2411150 + ... + 2411709.

It is an arithmetic number, because the mean of its divisors is an integer number (108514350).

Almost surely, 2^1350400520 is an apocalyptic number.

1350400520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1350400520 is an abundant number, since it is smaller than the sum of its proper divisors (2122058680).

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

1350400520 is a wasteful number, since it uses less digits than its factorization.

1350400520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4822877 (or 4822873 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 1350400520 is about 36747.7961243936. The cubic root of 1350400520 is about 1105.3187371772.

The spelling of 1350400520 in words is "one billion, three hundred fifty million, four hundred thousand, five hundred twenty".