58400842 has 4 divisors (see below), whose sum is σ = 87601266. Its totient is φ = 29200420.

The previous prime is 58400827. The next prime is 58400843. The reversal of 58400842 is 24800485.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24800485 = 5 ⋅4960097.

It can be written as a sum of positive squares in only one way, i.e., 49406841 + 8994001 = 7029^2 + 2999^2 .

It is not an unprimeable number, because it can be changed into a prime (58400843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14600209 + ... + 14600212.

Almost surely, 2^58400842 is an apocalyptic number.

58400842 is a deficient number, since it is larger than the sum of its proper divisors (29200424).

58400842 is a wasteful number, since it uses less digits than its factorization.

58400842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29200423.

The product of its (nonzero) digits is 10240, while the sum is 31.

The square root of 58400842 is about 7642.0443599864. The cubic root of 58400842 is about 387.9773474925.

The spelling of 58400842 in words is "fifty-eight million, four hundred thousand, eight hundred forty-two".