1520494386 has 16 divisors (see below), whose sum is σ = 3139085568. Its totient is φ = 490482000.

The previous prime is 1520494333. The next prime is 1520494403. The reversal of 1520494386 is 6834940251.

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, 4087165 + ... + 4087536.

It is an arithmetic number, because the mean of its divisors is an integer number (196192848).

Almost surely, 2^1520494386 is an apocalyptic number.

1520494386 is an abundant number, since it is smaller than the sum of its proper divisors (1618591182).

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

1520494386 is a wasteful number, since it uses less digits than its factorization.

1520494386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8174737.

The product of its (nonzero) digits is 207360, while the sum is 42.

The square root of 1520494386 is about 38993.5172304320. The cubic root of 1520494386 is about 1149.9040590409.

The spelling of 1520494386 in words is "one billion, five hundred twenty million, four hundred ninety-four thousand, three hundred eighty-six".