1424389540 has 96 divisors (see below), whose sum is σ = 3777145344. Its totient is φ = 439633920.

The previous prime is 1424389537. The next prime is 1424389559. The reversal of 1424389540 is 459834241.

It is a super-2 number, since 2×1424389540² = 4057771123322823200, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1424389493 and 1424389502.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41730 + ... + 67750.

It is an arithmetic number, because the mean of its divisors is an integer number (39345264).

Almost surely, 2^1424389540 is an apocalyptic number.

1424389540 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 1424389540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1888572672).

1424389540 is an abundant number, since it is smaller than the sum of its proper divisors (2352755804).

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

1424389540 is a wasteful number, since it uses less digits than its factorization.

1424389540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26077 (or 26075 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 1424389540 is about 37741.0855699727. The cubic root of 1424389540 is about 1125.1478429571.

The spelling of 1424389540 in words is "one billion, four hundred twenty-four million, three hundred eighty-nine thousand, five hundred forty".