1420687340 has 12 divisors (see below), whose sum is σ = 2983443456. Its totient is φ = 568274928.

The previous prime is 1420687321. The next prime is 1420687393. The reversal of 1420687340 is 437860241.

It is a self number, because there is not a number n which added to its sum of digits gives 1420687340.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35517164 + ... + 35517203.

It is an arithmetic number, because the mean of its divisors is an integer number (248620288).

Almost surely, 2^1420687340 is an apocalyptic number.

1420687340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1420687340 is an abundant number, since it is smaller than the sum of its proper divisors (1562756116).

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

1420687340 is a wasteful number, since it uses less digits than its factorization.

1420687340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71034376 (or 71034374 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 1420687340 is about 37692.0063143367. The cubic root of 1420687340 is about 1124.1721883849.

The spelling of 1420687340 in words is "one billion, four hundred twenty million, six hundred eighty-seven thousand, three hundred forty".