1432320040 has 32 divisors (see below), whose sum is σ = 3412293480. Its totient is φ = 539226112.

The previous prime is 1432320031. The next prime is 1432320041. The reversal of 1432320040 is 400232341.

It can be written as a sum of positive squares in 4 ways, for example, as 1432319716 + 324 = 37846^2 + 18^2 .

It is not an unprimeable number, because it can be changed into a prime (1432320041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1052497 + ... + 1053856.

Almost surely, 2^1432320040 is an apocalyptic number.

1432320040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1432320040 is an abundant number, since it is smaller than the sum of its proper divisors (1979973440).

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

1432320040 is a wasteful number, since it uses less digits than its factorization.

1432320040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2106381 (or 2106377 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 1432320040 is about 37846.0042805050. The cubic root of 1432320040 is about 1127.2321220435.

Adding to 1432320040 its reverse (400232341), we get a palindrome (1832552381).

The spelling of 1432320040 in words is "one billion, four hundred thirty-two million, three hundred twenty thousand, forty".