20352438 has 16 divisors (see below), whose sum is σ = 45227760. Its totient is φ = 6784128.

The previous prime is 20352433. The next prime is 20352469. The reversal of 20352438 is 83425302.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20352433) 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, 188395 + ... + 188502.

It is an arithmetic number, because the mean of its divisors is an integer number (2826735).

Almost surely, 2^20352438 is an apocalyptic number.

20352438 is an abundant number, since it is smaller than the sum of its proper divisors (24875322).

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

20352438 is a wasteful number, since it uses less digits than its factorization.

20352438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376908 (or 376902 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 20352438 is about 4511.3676418576. The cubic root of 20352438 is about 273.0269264590.

The spelling of 20352438 in words is "twenty million, three hundred fifty-two thousand, four hundred thirty-eight".