20359340 has 24 divisors (see below), whose sum is σ = 42855792. Its totient is φ = 8124480.

The previous prime is 20359337. The next prime is 20359441. The reversal of 20359340 is 4395302.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10010 + ... + 11870.

It is an arithmetic number, because the mean of its divisors is an integer number (1785658).

Almost surely, 2^20359340 is an apocalyptic number.

20359340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20359340 is an abundant number, since it is smaller than the sum of its proper divisors (22496452).

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

20359340 is a wasteful number, since it uses less digits than its factorization.

20359340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2417 (or 2415 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 20359340 is about 4512.1325335145. The cubic root of 20359340 is about 273.0577862978.

The spelling of 20359340 in words is "twenty million, three hundred fifty-nine thousand, three hundred forty".