1520050890 has 32 divisors (see below), whose sum is σ = 3650645376. Its totient is φ = 405066560.

The previous prime is 1520050879. The next prime is 1520050897. The reversal of 1520050890 is 980500251.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (1520050897) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28564 + ... + 62096.

It is an arithmetic number, because the mean of its divisors is an integer number (114082668).

Almost surely, 2^1520050890 is an apocalyptic number.

1520050890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1520050890 is an abundant number, since it is smaller than the sum of its proper divisors (2130594486).

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

1520050890 is a wasteful number, since it uses less digits than its factorization.

1520050890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35054.

The product of its (nonzero) digits is 3600, while the sum is 30.

The square root of 1520050890 is about 38987.8300242524. The cubic root of 1520050890 is about 1149.7922472849.

The spelling of 1520050890 in words is "one billion, five hundred twenty million, fifty thousand, eight hundred ninety".