42400202004391 has 32 divisors (see below), whose sum is σ = 53145223971840. Its totient is φ = 32862798835200.

The previous prime is 42400202004379. The next prime is 42400202004431. The reversal of 42400202004391 is 19340020200424.

It is a cyclic number.

It is not a de Polignac number, because 42400202004391 - 2¹¹ = 42400202002343 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42400202004301) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14207665 + ... + 16930981.

It is an arithmetic number, because the mean of its divisors is an integer number (1660788249120).

Almost surely, 2^{42400202004391} is an apocalyptic number.

42400202004391 is a deficient number, since it is larger than the sum of its proper divisors (10745021967449).

42400202004391 is a wasteful number, since it uses less digits than its factorization.

42400202004391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2724415.

The product of its (nonzero) digits is 13824, while the sum is 31.

The spelling of 42400202004391 in words is "forty-two trillion, four hundred billion, two hundred two million, four thousand, three hundred ninety-one".