1012280427 has 12 divisors (see below), whose sum is σ = 1472703960. Its totient is φ = 669997728.

The previous prime is 1012280387. The next prime is 1012280429. The reversal of 1012280427 is 7240822101.

1012280427 is a `hidden beast` number, since 10 + 1 + 228 + 0 + 427 = 666.

It is not a de Polignac number, because 1012280427 - 2¹⁶ = 1012214891 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1012280427.

It is not an unprimeable number, because it can be changed into a prime (1012280429) 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, 403338 + ... + 405839.

It is an arithmetic number, because the mean of its divisors is an integer number (122725330).

Almost surely, 2^1012280427 is an apocalyptic number.

1012280427 is a deficient number, since it is larger than the sum of its proper divisors (460423533).

1012280427 is a wasteful number, since it uses less digits than its factorization.

1012280427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809322 (or 809319 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 1012280427 is about 31816.3547094886. The cubic root of 1012280427 is about 1004.0768325169.

The spelling of 1012280427 in words is "one billion, twelve million, two hundred eighty thousand, four hundred twenty-seven".