20049270 has 32 divisors (see below), whose sum is σ = 48384000. Its totient is φ = 5316960.

The previous prime is 20049257. The next prime is 20049277. The reversal of 20049270 is 7294002.

It is a self number, because there is not a number n which added to its sum of digits gives 20049270.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20049277) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3981 + ... + 7479.

It is an arithmetic number, because the mean of its divisors is an integer number (1512000).

Almost surely, 2^20049270 is an apocalyptic number.

20049270 is an abundant number, since it is smaller than the sum of its proper divisors (28334730).

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

20049270 is a wasteful number, since it uses less digits than its factorization.

20049270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3700.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 20049270 is about 4477.6411200542. The cubic root of 20049270 is about 271.6644777990.

Adding to 20049270 its product of nonzero digits (1008), we get a triangular number (20050278 = T₆₃₃₂).

The spelling of 20049270 in words is "twenty million, forty-nine thousand, two hundred seventy".