1285442074 has 16 divisors (see below), whose sum is σ = 2319595200. Its totient is φ = 521908704.

The previous prime is 1285442071. The next prime is 1285442077. The reversal of 1285442074 is 4702445821.

It is an interprime number because it is at equal distance from previous prime (1285442071) and next prime (1285442077).

It is a super-2 number, since 2×1285442074² = 3304722651218842952, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1285442071) 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, 2415979 + ... + 2416510.

It is an arithmetic number, because the mean of its divisors is an integer number (144974700).

Almost surely, 2^1285442074 is an apocalyptic number.

1285442074 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1285442074 is a deficient number, since it is larger than the sum of its proper divisors (1034153126).

1285442074 is a wasteful number, since it uses less digits than its factorization.

1285442074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4832517.

The product of its (nonzero) digits is 71680, while the sum is 37.

The square root of 1285442074 is about 35853.0622680964. The cubic root of 1285442074 is about 1087.3036274484.

Adding to 1285442074 its reverse (4702445821), we get a palindrome (5987887895).

The spelling of 1285442074 in words is "one billion, two hundred eighty-five million, four hundred forty-two thousand, seventy-four".