20147274 has 24 divisors (see below), whose sum is σ = 49888800. Its totient is φ = 5756328.

The previous prime is 20147273. The next prime is 20147297. The reversal of 20147274 is 47274102.

20147274 = T₃₆₄ + T₃₆₅ + ... + T₅₅₂.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20147273) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 79824 + ... + 80075.

It is an arithmetic number, because the mean of its divisors is an integer number (2078700).

Almost surely, 2^20147274 is an apocalyptic number.

20147274 is an abundant number, since it is smaller than the sum of its proper divisors (29741526).

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

20147274 is a wasteful number, since it uses less digits than its factorization.

20147274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159914 (or 159911 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 27.

The square root of 20147274 is about 4488.5714876785. The cubic root of 20147274 is about 272.1064048085.

The spelling of 20147274 in words is "twenty million, one hundred forty-seven thousand, two hundred seventy-four".