405070425 has 18 divisors (see below), whose sum is σ = 725526542. Its totient is φ = 216037440.

The previous prime is 405070403. The next prime is 405070429. The reversal of 405070425 is 524070504.

It can be written as a sum of positive squares in 3 ways, for example, as 39992976 + 365077449 = 6324^2 + 19107^2 .

It is not a de Polignac number, because 405070425 - 2⁹ = 405069913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (405070429) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 899932 + ... + 900381.

Almost surely, 2^405070425 is an apocalyptic number.

405070425 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

405070425 is a deficient number, since it is larger than the sum of its proper divisors (320456117).

405070425 is a wasteful number, since it uses less digits than its factorization.

405070425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1800329 (or 1800321 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 27.

The square root of 405070425 is about 20126.3614446328. The cubic root of 405070425 is about 739.9065045014.

The spelling of 405070425 in words is "four hundred five million, seventy thousand, four hundred twenty-five".