1457126788 has 18 divisors (see below), whose sum is σ = 2761213434. Its totient is φ = 672519744.

The previous prime is 1457126773. The next prime is 1457126789. The reversal of 1457126788 is 8876217541.

It can be written as a sum of positive squares in 3 ways, for example, as 788544 + 1456338244 = 888^2 + 38162^2 .

It is not an unprimeable number, because it can be changed into a prime (1457126789) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1077081 + ... + 1078432.

Almost surely, 2^1457126788 is an apocalyptic number.

It is an amenable number.

1457126788 is a deficient number, since it is larger than the sum of its proper divisors (1304086646).

1457126788 is a wasteful number, since it uses less digits than its factorization.

1457126788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2155543 (or 2155528 counting only the distinct ones).

The product of its digits is 752640, while the sum is 49.

The square root of 1457126788 is about 38172.3301358458. The cubic root of 1457126788 is about 1133.7025255866.

The spelling of 1457126788 in words is "one billion, four hundred fifty-seven million, one hundred twenty-six thousand, seven hundred eighty-eight".