273424428 has 18 divisors (see below), whose sum is σ = 691156284. Its totient is φ = 91141464.

The previous prime is 273424423. The next prime is 273424439. The reversal of 273424428 is 824424372.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 7595123 = 273424428 / (2 + 7 + 3 + 4 + 2 + 4 + 4 + 2 + 8).

It is a junction number, because it is equal to n+sod(n) for n = 273424392 and 273424401.

It is not an unprimeable number, because it can be changed into a prime (273424423) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3797526 + ... + 3797597.

Almost surely, 2^273424428 is an apocalyptic number.

It is an amenable number.

273424428 is an abundant number, since it is smaller than the sum of its proper divisors (417731856).

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

273424428 is a wasteful number, since it uses less digits than its factorization.

273424428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7595133 (or 7595128 counting only the distinct ones).

The product of its digits is 86016, while the sum is 36.

The square root of 273424428 is about 16535.5504293023. The cubic root of 273424428 is about 649.0514195139.

The spelling of 273424428 in words is "two hundred seventy-three million, four hundred twenty-four thousand, four hundred twenty-eight".