1426136340 has 96 divisors (see below), whose sum is σ = 4048257024. Its totient is φ = 375096960.

The previous prime is 1426136329. The next prime is 1426136357. The reversal of 1426136340 is 436316241.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1426136298 and 1426136307.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1607377 + ... + 1608263.

It is an arithmetic number, because the mean of its divisors is an integer number (42169344).

Almost surely, 2^1426136340 is an apocalyptic number.

1426136340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1426136340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2024128512).

1426136340 is an abundant number, since it is smaller than the sum of its proper divisors (2622120684).

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

1426136340 is a wasteful number, since it uses less digits than its factorization.

1426136340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1237 (or 1235 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 1426136340 is about 37764.2203679621. The cubic root of 1426136340 is about 1125.6075967247.

The spelling of 1426136340 in words is "one billion, four hundred twenty-six million, one hundred thirty-six thousand, three hundred forty".