1285042070 has 64 divisors (see below), whose sum is σ = 2722761216. Its totient is φ = 432138240.

The previous prime is 1285042061. The next prime is 1285042123. The reversal of 1285042070 is 702405821.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 59132 + ... + 77888.

It is an arithmetic number, because the mean of its divisors is an integer number (42543144).

Almost surely, 2^1285042070 is an apocalyptic number.

1285042070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1285042070 is an abundant number, since it is smaller than the sum of its proper divisors (1437719146).

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

1285042070 is a wasteful number, since it uses less digits than its factorization.

1285042070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18825.

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 1285042070 is about 35847.4834542120. The cubic root of 1285042070 is about 1087.1908333287.

Adding to 1285042070 its reverse (702405821), we get a palindrome (1987447891).

The spelling of 1285042070 in words is "one billion, two hundred eighty-five million, forty-two thousand, seventy".