1945232520 has 128 divisors (see below), whose sum is σ = 7275709440. Its totient is φ = 404202240.

The previous prime is 1945232519. The next prime is 1945232539. The reversal of 1945232520 is 252325491.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 96022 + ... + 114501.

It is an arithmetic number, because the mean of its divisors is an integer number (56841480).

Almost surely, 2^1945232520 is an apocalyptic number.

1945232520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1945232520 is an abundant number, since it is smaller than the sum of its proper divisors (5330476920).

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

1945232520 is a wasteful number, since it uses less digits than its factorization.

1945232520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210555 (or 210551 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 1945232520 is about 44104.7902160298. The cubic root of 1945232520 is about 1248.3139978732.

The spelling of 1945232520 in words is "one billion, nine hundred forty-five million, two hundred thirty-two thousand, five hundred twenty".