1426401636 has 48 divisors (see below), whose sum is σ = 3747975168. Its totient is φ = 418298400.

The previous prime is 1426401631. The next prime is 1426401673. The reversal of 1426401636 is 6361046241.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 1426401597 and 1426401606.

It is not an unprimeable number, because it can be changed into a prime (1426401631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170200 + ... + 178383.

It is an arithmetic number, because the mean of its divisors is an integer number (78082816).

Almost surely, 2^1426401636 is an apocalyptic number.

It is an amenable number.

1426401636 is an abundant number, since it is smaller than the sum of its proper divisors (2321573532).

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

1426401636 is a wasteful number, since it uses less digits than its factorization.

1426401636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348632 (or 348630 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 1426401636 is about 37767.7327357627. The cubic root of 1426401636 is about 1125.6773891818.

Adding to 1426401636 its reverse (6361046241), we get a palindrome (7787447877).

The spelling of 1426401636 in words is "one billion, four hundred twenty-six million, four hundred one thousand, six hundred thirty-six".