1283474238 has 16 divisors (see below), whose sum is σ = 2568589056. Its totient is φ = 427551320.

The previous prime is 1283474233. The next prime is 1283474243. The reversal of 1283474238 is 8324743821.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1283474233) and next prime (1283474243).

It is a super-2 number, since 2×1283474238² = 3294612239219361288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1283474238.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1283474233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58068 + ... + 77063.

It is an arithmetic number, because the mean of its divisors is an integer number (160536816).

Almost surely, 2^1283474238 is an apocalyptic number.

1283474238 is an abundant number, since it is smaller than the sum of its proper divisors (1285114818).

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

1283474238 is a wasteful number, since it uses less digits than its factorization.

1283474238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136719.

The product of its digits is 258048, while the sum is 42.

The square root of 1283474238 is about 35825.6086898743. The cubic root of 1283474238 is about 1086.7485063676.

The spelling of 1283474238 in words is "one billion, two hundred eighty-three million, four hundred seventy-four thousand, two hundred thirty-eight".