420037825 has 24 divisors (see below), whose sum is σ = 544965120. Its totient is φ = 320822400.

The previous prime is 420037823. The next prime is 420037847. The reversal of 420037825 is 528730024.

It is not a de Polignac number, because 420037825 - 2¹ = 420037823 is a prime.

It is not an unprimeable number, because it can be changed into a prime (420037823) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43816 + ... + 52534.

It is an arithmetic number, because the mean of its divisors is an integer number (22706880).

Almost surely, 2^420037825 is an apocalyptic number.

It is an amenable number.

420037825 is a deficient number, since it is larger than the sum of its proper divisors (124927295).

420037825 is a wasteful number, since it uses less digits than its factorization.

420037825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8817 (or 8812 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 420037825 is about 20494.8243466491. The cubic root of 420037825 is about 748.9097195230.

Adding to 420037825 its reverse (528730024), we get a palindrome (948767849).

It can be divided in two parts, 4200 and 37825, that added together give a square (42025 = 205²).

The spelling of 420037825 in words is "four hundred twenty million, thirty-seven thousand, eight hundred twenty-five".