1283669040 has 40 divisors (see below), whose sum is σ = 3979374768. Its totient is φ = 342311680.

The previous prime is 1283669033. The next prime is 1283669053. The reversal of 1283669040 is 409663821.

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1283669040.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2674071 + ... + 2674550.

Almost surely, 2^1283669040 is an apocalyptic number.

1283669040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1283669040 is an abundant number, since it is smaller than the sum of its proper divisors (2695705728).

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

1283669040 is a wasteful number, since it uses less digits than its factorization.

1283669040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5348637 (or 5348631 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 39.

The square root of 1283669040 is about 35828.3273402485. The cubic root of 1283669040 is about 1086.8034847657.

The spelling of 1283669040 in words is "one billion, two hundred eighty-three million, six hundred sixty-nine thousand, forty".