1434523640 has 64 divisors (see below), whose sum is σ = 3580848000. Its totient is φ = 512794240.

The previous prime is 1434523637. The next prime is 1434523663. The reversal of 1434523640 is 463254341.

It is a junction number, because it is equal to n+sod(n) for n = 1434523597 and 1434523606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1670 + ... + 53589.

It is an arithmetic number, because the mean of its divisors is an integer number (55950750).

Almost surely, 2^1434523640 is an apocalyptic number.

1434523640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1434523640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1790424000).

1434523640 is an abundant number, since it is smaller than the sum of its proper divisors (2146324360).

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

1434523640 is a wasteful number, since it uses less digits than its factorization.

1434523640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55340 (or 55336 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 32.

The square root of 1434523640 is about 37875.1058084331. The cubic root of 1434523640 is about 1127.8099016539.

Adding to 1434523640 its reverse (463254341), we get a palindrome (1897777981).

The spelling of 1434523640 in words is "one billion, four hundred thirty-four million, five hundred twenty-three thousand, six hundred forty".