1425653990 has 8 divisors (see below), whose sum is σ = 2566177200. Its totient is φ = 570261592.

The previous prime is 1425653989. The next prime is 1425654023. The reversal of 1425653990 is 993565241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71282690 + ... + 71282709.

It is an arithmetic number, because the mean of its divisors is an integer number (320772150).

Almost surely, 2^1425653990 is an apocalyptic number.

1425653990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1425653990 is a deficient number, since it is larger than the sum of its proper divisors (1140523210).

1425653990 is a wasteful number, since it uses less digits than its factorization.

1425653990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142565406.

The product of its (nonzero) digits is 291600, while the sum is 44.

The square root of 1425653990 is about 37757.8334918729. The cubic root of 1425653990 is about 1125.4806808445.

The spelling of 1425653990 in words is "one billion, four hundred twenty-five million, six hundred fifty-three thousand, nine hundred ninety".