1840734432 has 72 divisors (see below), whose sum is σ = 5542520256. Its totient is φ = 577483776.

The previous prime is 1840734431. The next prime is 1840734439. The reversal of 1840734432 is 2344370481.

1840734432 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1840734431) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 183088 + ... + 192879.

It is an arithmetic number, because the mean of its divisors is an integer number (76979448).

Almost surely, 2^1840734432 is an apocalyptic number.

1840734432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1840734432 is an abundant number, since it is smaller than the sum of its proper divisors (3701785824).

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

1840734432 is a wasteful number, since it uses less digits than its factorization.

1840734432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376000 (or 375989 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 36.

The square root of 1840734432 is about 42903.7810921135. The cubic root of 1840734432 is about 1225.5481499628.

The spelling of 1840734432 in words is "one billion, eight hundred forty million, seven hundred thirty-four thousand, four hundred thirty-two".