1298738 has 8 divisors (see below), whose sum is σ = 2226432. Its totient is φ = 556596.

The previous prime is 1298723. The next prime is 1298747. The reversal of 1298738 is 8378921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46370 + ... + 46397.

It is an arithmetic number, because the mean of its divisors is an integer number (278304).

2^1298738 is an apocalyptic number.

1298738 is a deficient number, since it is larger than the sum of its proper divisors (927694).

1298738 is an equidigital number, since it uses as much as digits as its factorization.

1298738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92776.

The product of its digits is 24192, while the sum is 38.

The square root of 1298738 is about 1139.6218671121. The cubic root of 1298738 is about 109.1039605176.

The spelling of 1298738 in words is "one million, two hundred ninety-eight thousand, seven hundred thirty-eight".