1424350521 has 64 divisors (see below), whose sum is σ = 2412748800. Its totient is φ = 822571200.

The previous prime is 1424350517. The next prime is 1424350541. The reversal of 1424350521 is 1250534241.

It is not a de Polignac number, because 1424350521 - 2² = 1424350517 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1424350511) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 615715 + ... + 618023.

It is an arithmetic number, because the mean of its divisors is an integer number (37699200).

Almost surely, 2^1424350521 is an apocalyptic number.

1424350521 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1424350521 is a deficient number, since it is larger than the sum of its proper divisors (988398279).

1424350521 is a wasteful number, since it uses less digits than its factorization.

1424350521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2427 (or 2421 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 1424350521 is about 37740.5686364156. The cubic root of 1424350521 is about 1125.1375689547.

Adding to 1424350521 its reverse (1250534241), we get a palindrome (2674884762).

The spelling of 1424350521 in words is "one billion, four hundred twenty-four million, three hundred fifty thousand, five hundred twenty-one".