1425235920 has 80 divisors (see below), whose sum is σ = 4421925312. Its totient is φ = 379745280.

The previous prime is 1425235909. The next prime is 1425235921. The reversal of 1425235920 is 295325241.

It is a tau number, because it is divible by the number of its divisors (80).

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1425235921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 481164 + ... + 484116.

Almost surely, 2^1425235920 is an apocalyptic number.

1425235920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1425235920 is an abundant number, since it is smaller than the sum of its proper divisors (2996689392).

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

1425235920 is a wasteful number, since it uses less digits than its factorization.

1425235920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4980 (or 4974 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 1425235920 is about 37752.2968837659. The cubic root of 1425235920 is about 1125.3706551503.

The spelling of 1425235920 in words is "one billion, four hundred twenty-five million, two hundred thirty-five thousand, nine hundred twenty".