1027247740 has 24 divisors (see below), whose sum is σ = 2157926400. Its totient is φ = 410764608.

The previous prime is 1027247731. The next prime is 1027247759. The reversal of 1027247740 is 477427201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1027247696 and 1027247705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73861 + ... + 86659.

It is an arithmetic number, because the mean of its divisors is an integer number (89913600).

Almost surely, 2^1027247740 is an apocalyptic number.

1027247740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1027247740 is an abundant number, since it is smaller than the sum of its proper divisors (1130678660).

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

1027247740 is a wasteful number, since it uses less digits than its factorization.

1027247740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16821 (or 16819 counting only the distinct ones).

The product of its (nonzero) digits is 21952, while the sum is 34.

The square root of 1027247740 is about 32050.7057644602. The cubic root of 1027247740 is about 1009.0013132533.

The spelling of 1027247740 in words is "one billion, twenty-seven million, two hundred forty-seven thousand, seven hundred forty".