20514346 has 4 divisors (see below), whose sum is σ = 30771522. Its totient is φ = 10257172.

The previous prime is 20514341. The next prime is 20514371. The reversal of 20514346 is 64341502.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 19492225 + 1022121 = 4415^2 + 1011^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20514346.

It is not an unprimeable number, because it can be changed into a prime (20514341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5128585 + ... + 5128588.

Almost surely, 2^20514346 is an apocalyptic number.

20514346 is a deficient number, since it is larger than the sum of its proper divisors (10257176).

20514346 is a wasteful number, since it uses less digits than its factorization.

20514346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10257175.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 20514346 is about 4529.2765426721. The cubic root of 20514346 is about 273.7490109289.

Adding to 20514346 its reverse (64341502), we get a palindrome (84855848).

The spelling of 20514346 in words is "twenty million, five hundred fourteen thousand, three hundred forty-six".