424042638 has 16 divisors (see below), whose sum is σ = 848534736. Its totient is φ = 141272640.

The previous prime is 424042621. The next prime is 424042639. The reversal of 424042638 is 836240424.

It is a junction number, because it is equal to n+sod(n) for n = 424042599 and 424042608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424042639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5773 + ... + 29688.

It is an arithmetic number, because the mean of its divisors is an integer number (53033421).

Almost surely, 2^424042638 is an apocalyptic number.

424042638 is an abundant number, since it is smaller than the sum of its proper divisors (424492098).

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

424042638 is a wasteful number, since it uses less digits than its factorization.

424042638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37459.

The product of its (nonzero) digits is 36864, while the sum is 33.

The square root of 424042638 is about 20592.2955981114. The cubic root of 424042638 is about 751.2823324706.

The spelling of 424042638 in words is "four hundred twenty-four million, forty-two thousand, six hundred thirty-eight".