1308402 has 12 divisors (see below), whose sum is σ = 2834910. Its totient is φ = 436128.

The previous prime is 1308383. The next prime is 1308403. The reversal of 1308402 is 2048031.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1279161 + 29241 = 1131^2 + 171^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 72689 = 1308402 / (1 + 3 + 0 + 8 + 4 + 0 + 2).

It is not an unprimeable number, because it can be changed into a prime (1308403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 36327 + ... + 36362.

2^1308402 is an apocalyptic number.

1308402 is an abundant number, since it is smaller than the sum of its proper divisors (1526508).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1308402 is a wasteful number, since it uses less digits than its factorization.

1308402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72697 (or 72694 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1308402 is about 1143.8540116641. The cubic root of 1308402 is about 109.3739087782.

The spelling of 1308402 in words is "one million, three hundred eight thousand, four hundred two".