1425642 has 8 divisors (see below), whose sum is σ = 2851296. Its totient is φ = 475212.

The previous prime is 1425629. The next prime is 1425649. The reversal of 1425642 is 2465241.

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

1425642 is an admirable number.

It is a super-2 number, since 2×1425642² = 4064910224328, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1425649) 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, 118798 + ... + 118809.

It is an arithmetic number, because the mean of its divisors is an integer number (356412).

2^1425642 is an apocalyptic number.

1425642 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1425642 is a wasteful number, since it uses less digits than its factorization.

1425642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237612.

The product of its digits is 1920, while the sum is 24.

The square root of 1425642 is about 1194.0025125602. The cubic root of 1425642 is about 112.5477525672.

The spelling of 1425642 in words is "one million, four hundred twenty-five thousand, six hundred forty-two".