1420032544 has 72 divisors (see below), whose sum is σ = 3260987100. Its totient is φ = 606928896.

The previous prime is 1420032529. The next prime is 1420032547. The reversal of 1420032544 is 4452300241.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1335171600 + 84860944 = 36540^2 + 9212^2 .

It is a super-2 number, since 2×1420032544² = 4032984852038223872, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1420032547) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 703024 + ... + 705040.

Almost surely, 2^1420032544 is an apocalyptic number.

1420032544 is a gapful number since it is divisible by the number (14) 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 1420032544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1630493550).

1420032544 is an abundant number, since it is smaller than the sum of its proper divisors (1840954556).

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

1420032544 is a wasteful number, since it uses less digits than its factorization.

1420032544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2490 (or 2475 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 1420032544 is about 37683.3191744039. The cubic root of 1420032544 is about 1123.9994512056. Note that the first 3 decimals are identical.

Adding to 1420032544 its reverse (4452300241), we get a palindrome (5872332785).

The spelling of 1420032544 in words is "one billion, four hundred twenty million, thirty-two thousand, five hundred forty-four".