1285562472 has 32 divisors (see below), whose sum is σ = 3234386400. Its totient is φ = 425790144.

The previous prime is 1285562461. The next prime is 1285562501. The reversal of 1285562472 is 2742655821.

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, 166822 + ... + 174357.

It is an arithmetic number, because the mean of its divisors is an integer number (101074575).

Almost surely, 2^1285562472 is an apocalyptic number.

1285562472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1285562472 is an abundant number, since it is smaller than the sum of its proper divisors (1948823928).

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

1285562472 is a wasteful number, since it uses less digits than its factorization.

1285562472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341345 (or 341341 counting only the distinct ones).

The product of its digits is 268800, while the sum is 42.

The square root of 1285562472 is about 35854.7412764337. The cubic root of 1285562472 is about 1087.3375729934.

The spelling of 1285562472 in words is "one billion, two hundred eighty-five million, five hundred sixty-two thousand, four hundred seventy-two".