1027157656 has 16 divisors (see below), whose sum is σ = 2201052240. Its totient is φ = 440210400.

The previous prime is 1027157623. The next prime is 1027157657. The reversal of 1027157656 is 6567517201.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1027157657) 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, 9170995 + ... + 9171106.

It is an arithmetic number, because the mean of its divisors is an integer number (137565765).

Almost surely, 2^1027157656 is an apocalyptic number.

It is an amenable number.

1027157656 is an abundant number, since it is smaller than the sum of its proper divisors (1173894584).

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

1027157656 is a wasteful number, since it uses less digits than its factorization.

1027157656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18342114 (or 18342110 counting only the distinct ones).

The product of its (nonzero) digits is 88200, while the sum is 40.

The square root of 1027157656 is about 32049.3003979806. The cubic root of 1027157656 is about 1008.9718177617.

The spelling of 1027157656 in words is "one billion, twenty-seven million, one hundred fifty-seven thousand, six hundred fifty-six".