1297883942 has 4 divisors (see below), whose sum is σ = 1946825916. Its totient is φ = 648941970.

The previous prime is 1297883933. The next prime is 1297883957. The reversal of 1297883942 is 2493887921.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 324470984 + ... + 324470987.

It is an arithmetic number, because the mean of its divisors is an integer number (486706479).

Almost surely, 2^1297883942 is an apocalyptic number.

1297883942 is a deficient number, since it is larger than the sum of its proper divisors (648941974).

1297883942 is an equidigital number, since it uses as much as digits as its factorization.

1297883942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648941973.

The product of its digits is 1741824, while the sum is 53.

The square root of 1297883942 is about 36026.1563589568. The cubic root of 1297883942 is about 1090.8003946419.

The spelling of 1297883942 in words is "one billion, two hundred ninety-seven million, eight hundred eighty-three thousand, nine hundred forty-two".