425687340 has 72 divisors (see below), whose sum is σ = 1290694608. Its totient is φ = 104782080.

The previous prime is 425687333. The next prime is 425687351. The reversal of 425687340 is 43786524.

It is a happy number.

It is a super-2 number, since 2×425687340² = 362419422872551200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 10851 + ... + 31130.

It is an arithmetic number, because the mean of its divisors is an integer number (17926314).

Almost surely, 2^425687340 is an apocalyptic number.

It is an amenable number.

425687340 is an abundant number, since it is smaller than the sum of its proper divisors (865007268).

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

425687340 is a wasteful number, since it uses less digits than its factorization.

425687340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42019 (or 42004 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 39.

The square root of 425687340 is about 20632.1918370298. The cubic root of 425687340 is about 752.2523933054.

The spelling of 425687340 in words is "four hundred twenty-five million, six hundred eighty-seven thousand, three hundred forty".