58406778 has 32 divisors (see below), whose sum is σ = 130996800. Its totient is φ = 19288368.

The previous prime is 58406773. The next prime is 58406797. The reversal of 58406778 is 87760485.

58406778 is a `hidden beast` number, since 584 + 0 + 67 + 7 + 8 = 666.

It is a super-2 number, since 2×58406778² = 6822703432682568, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (58406773) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 925 + ... + 10847.

It is an arithmetic number, because the mean of its divisors is an integer number (4093650).

Almost surely, 2^58406778 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 58406778, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65498400).

58406778 is an abundant number, since it is smaller than the sum of its proper divisors (72590022).

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

58406778 is a wasteful number, since it uses less digits than its factorization.

58406778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10043 (or 10037 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 45.

The square root of 58406778 is about 7642.4327278688. The cubic root of 58406778 is about 387.9904920262.

The spelling of 58406778 in words is "fifty-eight million, four hundred six thousand, seven hundred seventy-eight".