1425504220 has 24 divisors (see below), whose sum is σ = 3421210464. Its totient is φ = 488744256.

The previous prime is 1425504211. The next prime is 1425504221. The reversal of 1425504220 is 224055241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1425504221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5090947 + ... + 5091226.

It is an arithmetic number, because the mean of its divisors is an integer number (142550436).

Almost surely, 2^1425504220 is an apocalyptic number.

1425504220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1425504220 is an abundant number, since it is smaller than the sum of its proper divisors (1995706244).

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

1425504220 is a wasteful number, since it uses less digits than its factorization.

1425504220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10182189 (or 10182187 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 1425504220 is about 37755.8501427262. The cubic root of 1425504220 is about 1125.4412675540.

Adding to 1425504220 its reverse (224055241), we get a palindrome (1649559461).

The spelling of 1425504220 in words is "one billion, four hundred twenty-five million, five hundred four thousand, two hundred twenty".