1434521440 has 96 divisors (see below), whose sum is σ = 3730388256. Its totient is φ = 516956160.

The previous prime is 1434521401. The next prime is 1434521447. The reversal of 1434521440 is 441254341.

It is a junction number, because it is equal to n+sod(n) for n = 1434521399 and 1434521408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1434521447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 195274 + ... + 202486.

It is an arithmetic number, because the mean of its divisors is an integer number (38858211).

Almost surely, 2^1434521440 is an apocalyptic number.

1434521440 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 1434521440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1865194128).

1434521440 is an abundant number, since it is smaller than the sum of its proper divisors (2295866816).

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

1434521440 is a wasteful number, since it uses less digits than its factorization.

1434521440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7352 (or 7344 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 1434521440 is about 37875.0767655988. The cubic root of 1434521440 is about 1127.8093251134.

Adding to 1434521440 its reverse (441254341), we get a palindrome (1875775781).

The spelling of 1434521440 in words is "one billion, four hundred thirty-four million, five hundred twenty-one thousand, four hundred forty".