20239450 has 72 divisors (see below), whose sum is σ = 47836224. Its totient is φ = 6300000.

The previous prime is 20239433. The next prime is 20239463. The reversal of 20239450 is 5493202.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 26575 + ... + 27325.

It is an arithmetic number, because the mean of its divisors is an integer number (664392).

Almost surely, 2^20239450 is an apocalyptic number.

20239450 is an abundant number, since it is smaller than the sum of its proper divisors (27596774).

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

20239450 is a wasteful number, since it uses less digits than its factorization.

20239450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 788 (or 776 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 20239450 is about 4498.8276250597. The cubic root of 20239450 is about 272.5207458324.

The spelling of 20239450 in words is "twenty million, two hundred thirty-nine thousand, four hundred fifty".