402426340 has 24 divisors (see below), whose sum is σ = 845474112. Its totient is φ = 160898400.

The previous prime is 402426337. The next prime is 402426341. The reversal of 402426340 is 43624204.

It is not an unprimeable number, because it can be changed into a prime (402426341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78537 + ... + 83503.

It is an arithmetic number, because the mean of its divisors is an integer number (35228088).

Almost surely, 2^402426340 is an apocalyptic number.

It is an amenable number.

402426340 is an abundant number, since it is smaller than the sum of its proper divisors (443047772).

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

402426340 is a wasteful number, since it uses less digits than its factorization.

402426340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9027 (or 9025 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

The square root of 402426340 is about 20060.5667915939. The cubic root of 402426340 is about 738.2930830643.

The spelling of 402426340 in words is "four hundred two million, four hundred twenty-six thousand, three hundred forty".