1388962 has 4 divisors (see below), whose sum is σ = 2083446. Its totient is φ = 694480.

The previous prime is 1388953. The next prime is 1388963. The reversal of 1388962 is 2698831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2698831 = 97 ⋅27823.

It can be written as a sum of positive squares in only one way, i.e., 1018081 + 370881 = 1009^2 + 609^2 .

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1388963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 347239 + ... + 347242.

2^1388962 is an apocalyptic number.

1388962 is a deficient number, since it is larger than the sum of its proper divisors (694484).

1388962 is an equidigital number, since it uses as much as digits as its factorization.

1388962 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694483.

The product of its digits is 20736, while the sum is 37.

The square root of 1388962 is about 1178.5423199869. The cubic root of 1388962 is about 111.5741160321.

The spelling of 1388962 in words is "one million, three hundred eighty-eight thousand, nine hundred sixty-two".