1396543802 has 4 divisors (see below), whose sum is σ = 2094815706. Its totient is φ = 698271900.

The previous prime is 1396543793. The next prime is 1396543891. The reversal of 1396543802 is 2083456931.

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

It can be written as a sum of positive squares in only one way, i.e., 1358585881 + 37957921 = 36859^2 + 6161^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1396543802.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 349135949 + ... + 349135952.

Almost surely, 2^1396543802 is an apocalyptic number.

1396543802 is a deficient number, since it is larger than the sum of its proper divisors (698271904).

1396543802 is an equidigital number, since it uses as much as digits as its factorization.

1396543802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 698271903.

The product of its (nonzero) digits is 155520, while the sum is 41.

The square root of 1396543802 is about 37370.3599393958. The cubic root of 1396543802 is about 1117.7676095717.

The spelling of 1396543802 in words is "one billion, three hundred ninety-six million, five hundred forty-three thousand, eight hundred two".