425144742 has 32 divisors (see below), whose sum is σ = 967921920. Its totient is φ = 123229920.

The previous prime is 425144711. The next prime is 425144743. The reversal of 425144742 is 247441524.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425144743) 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, 138517 + ... + 141552.

It is an arithmetic number, because the mean of its divisors is an integer number (30247560).

Almost surely, 2^425144742 is an apocalyptic number.

425144742 is an abundant number, since it is smaller than the sum of its proper divisors (542777178).

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

425144742 is a wasteful number, since it uses less digits than its factorization.

425144742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280108.

The product of its digits is 35840, while the sum is 33.

The square root of 425144742 is about 20619.0383383901. The cubic root of 425144742 is about 751.9326404789.

The spelling of 425144742 in words is "four hundred twenty-five million, one hundred forty-four thousand, seven hundred forty-two".