381426435 has 32 divisors (see below), whose sum is σ = 730255680. Its totient is φ = 187778304.

The previous prime is 381426401. The next prime is 381426439. The reversal of 381426435 is 534624183.

381426435 is a `hidden beast` number, since 3 + 8 + 1 + 4 + 2 + 643 + 5 = 666.

It is not a de Polignac number, because 381426435 - 2¹³ = 381418243 is a prime.

It is a super-2 number, since 2×381426435² = 290972250633618450, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 381426435.

It is not an unprimeable number, because it can be changed into a prime (381426439) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 106914 + ... + 110423.

It is an arithmetic number, because the mean of its divisors is an integer number (22820490).

Almost surely, 2^381426435 is an apocalyptic number.

381426435 is a deficient number, since it is larger than the sum of its proper divisors (348829245).

381426435 is a wasteful number, since it uses less digits than its factorization.

381426435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217364 (or 217358 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 381426435 is about 19530.1417045550. The cubic root of 381426435 is about 725.2208189831.

The spelling of 381426435 in words is "three hundred eighty-one million, four hundred twenty-six thousand, four hundred thirty-five".