1026144556 has 24 divisors (see below), whose sum is σ = 1841023296. Its totient is φ = 500158080.

The previous prime is 1026144541. The next prime is 1026144557. The reversal of 1026144556 is 6554416201.

It is not an unprimeable number, because it can be changed into a prime (1026144557) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 400030 + ... + 402586.

It is an arithmetic number, because the mean of its divisors is an integer number (76709304).

Almost surely, 2^1026144556 is an apocalyptic number.

It is an amenable number.

1026144556 is a deficient number, since it is larger than the sum of its proper divisors (814878740).

1026144556 is a wasteful number, since it uses less digits than its factorization.

1026144556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5049 (or 5047 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 1026144556 is about 32033.4911615952. The cubic root of 1026144556 is about 1008.6399876239.

The spelling of 1026144556 in words is "one billion, twenty-six million, one hundred forty-four thousand, five hundred fifty-six".