1283377452 has 24 divisors (see below), whose sum is σ = 3422340096. Its totient is φ = 366679248.

The previous prime is 1283377451. The next prime is 1283377453. The reversal of 1283377452 is 2547733821.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1283377451) and next prime (1283377453).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (1283377451) 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, 7639068 + ... + 7639235.

It is an arithmetic number, because the mean of its divisors is an integer number (142597504).

Almost surely, 2^1283377452 is an apocalyptic number.

1283377452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1283377452 is an abundant number, since it is smaller than the sum of its proper divisors (2138962644).

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

1283377452 is a wasteful number, since it uses less digits than its factorization.

1283377452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15278317 (or 15278315 counting only the distinct ones).

The product of its digits is 282240, while the sum is 42.

The square root of 1283377452 is about 35824.2578708897. The cubic root of 1283377452 is about 1086.7211886696.

The spelling of 1283377452 in words is "one billion, two hundred eighty-three million, three hundred seventy-seven thousand, four hundred fifty-two".