400284426642 has 16 divisors (see below), whose sum is σ = 801281750880. Its totient is φ = 133309325952.

The previous prime is 400284426637. The next prime is 400284426653. The reversal of 400284426642 is 246624482004.

400284426642 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×400284426642² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 400284426594 and 400284426603.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29696767 + ... + 29710242.

It is an arithmetic number, because the mean of its divisors is an integer number (50080109430).

Almost surely, 2^400284426642 is an apocalyptic number.

400284426642 is an abundant number, since it is smaller than the sum of its proper divisors (400997324238).

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

400284426642 is a wasteful number, since it uses less digits than its factorization.

400284426642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59408137.

The product of its (nonzero) digits is 589824, while the sum is 42.

The spelling of 400284426642 in words is "four hundred billion, two hundred eighty-four million, four hundred twenty-six thousand, six hundred forty-two".