250401642 has 16 divisors (see below), whose sum is σ = 512450400. Its totient is φ = 81526032.

The previous prime is 250401617. The next prime is 250401647. The reversal of 250401642 is 246104052.

It is a super-4 number, since 4×250401642⁴ (a number of 35 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (250401647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 485017 + ... + 485532.

It is an arithmetic number, because the mean of its divisors is an integer number (32028150).

Almost surely, 2^250401642 is an apocalyptic number.

250401642 is an abundant number, since it is smaller than the sum of its proper divisors (262048758).

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

250401642 is a wasteful number, since it uses less digits than its factorization.

250401642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 970597.

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

The square root of 250401642 is about 15824.0842389062. The cubic root of 250401642 is about 630.2977025858.

Adding to 250401642 its reverse (246104052), we get a palindrome (496505694).

The spelling of 250401642 in words is "two hundred fifty million, four hundred one thousand, six hundred forty-two".