1420340394 has 32 divisors (see below), whose sum is σ = 3151457280. Its totient is φ = 423110000.

The previous prime is 1420340393. The next prime is 1420340399. The reversal of 1420340394 is 4930430241.

It is not an unprimeable number, because it can be changed into a prime (1420340393) 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, 178482 + ... + 186269.

It is an arithmetic number, because the mean of its divisors is an integer number (98483040).

Almost surely, 2^1420340394 is an apocalyptic number.

1420340394 is an abundant number, since it is smaller than the sum of its proper divisors (1731116886).

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

1420340394 is a wasteful number, since it uses less digits than its factorization.

1420340394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364826.

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 1420340394 is about 37687.4036516181. The cubic root of 1420340394 is about 1124.0806695858.

The spelling of 1420340394 in words is "one billion, four hundred twenty million, three hundred forty thousand, three hundred ninety-four".