1393433420 has 24 divisors (see below), whose sum is σ = 2926999824. Its totient is φ = 557222976.

The previous prime is 1393433389. The next prime is 1393433429. The reversal of 1393433420 is 243343931.

It is not an unprimeable number, because it can be changed into a prime (1393433429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94679 + ... + 108401.

It is an arithmetic number, because the mean of its divisors is an integer number (121958326).

Almost surely, 2^1393433420 is an apocalyptic number.

1393433420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1393433420 is an abundant number, since it is smaller than the sum of its proper divisors (1533566404).

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

1393433420 is a wasteful number, since it uses less digits than its factorization.

1393433420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18809 (or 18807 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 32.

The square root of 1393433420 is about 37328.7211139091. The cubic root of 1393433420 is about 1116.9371621637.

The spelling of 1393433420 in words is "one billion, three hundred ninety-three million, four hundred thirty-three thousand, four hundred twenty".