425642020 has 24 divisors (see below), whose sum is σ = 894345984. Its totient is φ = 170162016.

The previous prime is 425641999. The next prime is 425642051. The reversal of 425642020 is 20246524.

It is a super-2 number, since 2×425642020² = 362342258379360800, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39319 + ... + 48961.

It is an arithmetic number, because the mean of its divisors is an integer number (37264416).

Almost surely, 2^425642020 is an apocalyptic number.

It is an amenable number.

425642020 is an abundant number, since it is smaller than the sum of its proper divisors (468703964).

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

425642020 is a wasteful number, since it uses less digits than its factorization.

425642020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11859 (or 11857 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 425642020 is about 20631.0935240961. The cubic root of 425642020 is about 752.2256966471.

Adding to 425642020 its reverse (20246524), we get a palindrome (445888544).

The spelling of 425642020 in words is "four hundred twenty-five million, six hundred forty-two thousand, twenty".