1428501744 has 70 divisors (see below), whose sum is σ = 4149718776. Its totient is φ = 476163360.

The previous prime is 1428501743. The next prime is 1428501751. The reversal of 1428501744 is 4471058241.

It is a happy number.

1428501744 is a `hidden beast` number, since 142 + 8 + 501 + 7 + 4 + 4 = 666.

It is a super-2 number, since 2×1428501744² = 4081234465222083072, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1428501699 and 1428501708.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1428501743) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 49572 + ... + 72899.

Almost surely, 2^1428501744 is an apocalyptic number.

It is an amenable number.

1428501744 is an abundant number, since it is smaller than the sum of its proper divisors (2721217032).

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

1428501744 is an equidigital number, since it uses as much as digits as its factorization.

1428501744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122497 (or 122476 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 36.

The square root of 1428501744 is about 37795.5254494497. The cubic root of 1428501744 is about 1126.2295676556.

Adding to 1428501744 its reverse (4471058241), we get a palindrome (5899559985).

The spelling of 1428501744 in words is "one billion, four hundred twenty-eight million, five hundred one thousand, seven hundred forty-four".