20120396 has 6 divisors (see below), whose sum is σ = 35210700. Its totient is φ = 10060196.

The previous prime is 20120383. The next prime is 20120407. The reversal of 20120396 is 69302102.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2515046 + ... + 2515053.

It is an arithmetic number, because the mean of its divisors is an integer number (5868450).

Almost surely, 2^20120396 is an apocalyptic number.

It is an amenable number.

20120396 is a deficient number, since it is larger than the sum of its proper divisors (15090304).

20120396 is a wasteful number, since it uses less digits than its factorization.

20120396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5030103 (or 5030101 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 20120396 is about 4485.5764401022. The cubic root of 20120396 is about 271.9853473941.

Adding to 20120396 its reverse (69302102), we get a palindrome (89422498).

The spelling of 20120396 in words is "twenty million, one hundred twenty thousand, three hundred ninety-six".