1425684490 has 8 divisors (see below), whose sum is σ = 2566232100. Its totient is φ = 570273792.

The previous prime is 1425684467. The next prime is 1425684499. The reversal of 1425684490 is 944865241.

It can be written as a sum of positive squares in 2 ways, for example, as 1409176521 + 16507969 = 37539^2 + 4063^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1425684499) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71284215 + ... + 71284234.

Almost surely, 2^1425684490 is an apocalyptic number.

1425684490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1425684490 is a deficient number, since it is larger than the sum of its proper divisors (1140547610).

1425684490 is a wasteful number, since it uses less digits than its factorization.

1425684490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142568456.

The product of its (nonzero) digits is 276480, while the sum is 43.

The square root of 1425684490 is about 37758.2373794117. The cubic root of 1425684490 is about 1125.4887068490.

The spelling of 1425684490 in words is "one billion, four hundred twenty-five million, six hundred eighty-four thousand, four hundred ninety".