1426939812 has 54 divisors (see below), whose sum is σ = 3831671298. Its totient is φ = 447664128.

The previous prime is 1426939793. The next prime is 1426939831. The reversal of 1426939812 is 2189396241.

It is an interprime number because it is at equal distance from previous prime (1426939793) and next prime (1426939831).

It can be written as a sum of positive squares in 3 ways, for example, as 696643236 + 730296576 = 26394^2 + 27024^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 58173 + ... + 78980.

Almost surely, 2^1426939812 is an apocalyptic number.

1426939812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1426939812 is an abundant number, since it is smaller than the sum of its proper divisors (2404731486).

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

1426939812 is a wasteful number, since it uses less digits than its factorization.

1426939812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137197 (or 137175 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 1426939812 is about 37774.8568759698. The cubic root of 1426939812 is about 1125.8189426698.

The spelling of 1426939812 in words is "one billion, four hundred twenty-six million, nine hundred thirty-nine thousand, eight hundred twelve".