1298164742 has 24 divisors (see below), whose sum is σ = 2338240320. Its totient is φ = 538408080.

The previous prime is 1298164741. The next prime is 1298164783. The reversal of 1298164742 is 2474618921.

It is a junction number, because it is equal to n+sod(n) for n = 1298164693 and 1298164702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1298164741) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 210617 + ... + 216692.

It is an arithmetic number, because the mean of its divisors is an integer number (97426680).

Almost surely, 2^1298164742 is an apocalyptic number.

1298164742 is a deficient number, since it is larger than the sum of its proper divisors (1040075578).

1298164742 is a wasteful number, since it uses less digits than its factorization.

1298164742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427356 (or 427349 counting only the distinct ones).

The product of its digits is 193536, while the sum is 44.

The square root of 1298164742 is about 36030.0533166411. The cubic root of 1298164742 is about 1090.8790546448.

The spelling of 1298164742 in words is "one billion, two hundred ninety-eight million, one hundred sixty-four thousand, seven hundred forty-two".