8340402 has 32 divisors (see below), whose sum is σ = 19152000. Its totient is φ = 2371968.

The previous prime is 8340401. The next prime is 8340403. The reversal of 8340402 is 2040438.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (8340401) and next prime (8340403).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (8340401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14374 + ... + 14942.

It is an arithmetic number, because the mean of its divisors is an integer number (598500).

Almost surely, 2^8340402 is an apocalyptic number.

8340402 is an abundant number, since it is smaller than the sum of its proper divisors (10811598).

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

8340402 is a wasteful number, since it uses less digits than its factorization.

8340402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 930.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 8340402 is about 2887.9754154078. The cubic root of 8340402 is about 202.7973743966.

The spelling of 8340402 in words is "eight million, three hundred forty thousand, four hundred two".