1428681452 has 12 divisors (see below), whose sum is σ = 2727482856. Its totient is φ = 649400640.

The previous prime is 1428681451. The next prime is 1428681473. The reversal of 1428681452 is 2541868241.

It is a super-2 number, since 2×1428681452² = 4082261382577656608, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1428681451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16234973 + ... + 16235060.

It is an arithmetic number, because the mean of its divisors is an integer number (227290238).

Almost surely, 2^1428681452 is an apocalyptic number.

It is an amenable number.

1428681452 is a deficient number, since it is larger than the sum of its proper divisors (1298801404).

1428681452 is a wasteful number, since it uses less digits than its factorization.

1428681452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32470048 (or 32470046 counting only the distinct ones).

The product of its digits is 122880, while the sum is 41.

The square root of 1428681452 is about 37797.9027460519. The cubic root of 1428681452 is about 1126.2767928871.

The spelling of 1428681452 in words is "one billion, four hundred twenty-eight million, six hundred eighty-one thousand, four hundred fifty-two".