1864480432 has 20 divisors (see below), whose sum is σ = 3616643520. Its totient is φ = 931153088.

The previous prime is 1864480427. The next prime is 1864480439. The reversal of 1864480432 is 2340844681.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1864480439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53707 + ... + 81322.

It is an arithmetic number, because the mean of its divisors is an integer number (180832176).

Almost surely, 2^1864480432 is an apocalyptic number.

It is an amenable number.

1864480432 is a deficient number, since it is larger than the sum of its proper divisors (1752163088).

1864480432 is a wasteful number, since it uses less digits than its factorization.

1864480432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135900 (or 135894 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 40.

The square root of 1864480432 is about 43179.6298270377. The cubic root of 1864480432 is about 1230.7956233427.

The spelling of 1864480432 in words is "one billion, eight hundred sixty-four million, four hundred eighty thousand, four hundred thirty-two".