42938400399 has 4 divisors (see below), whose sum is σ = 57251200536. Its totient is φ = 28625600264.

The previous prime is 42938400361. The next prime is 42938400457. The reversal of 42938400399 is 99300483924.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42938400399 - 2⁹ = 42938399887 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42938400299) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7156400064 + ... + 7156400069.

It is an arithmetic number, because the mean of its divisors is an integer number (14312800134).

Almost surely, 2^42938400399 is an apocalyptic number.

42938400399 is a deficient number, since it is larger than the sum of its proper divisors (14312800137).

42938400399 is a wasteful number, since it uses less digits than its factorization.

42938400399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14312800136.

The product of its (nonzero) digits is 1679616, while the sum is 51.

The spelling of 42938400399 in words is "forty-two billion, nine hundred thirty-eight million, four hundred thousand, three hundred ninety-nine".