21294058 has 8 divisors (see below), whose sum is σ = 32063328. Its totient is φ = 10606284.

The previous prime is 21294029. The next prime is 21294089. The reversal of 21294058 is 85049212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×21294058³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19716 + ... + 20767.

It is an arithmetic number, because the mean of its divisors is an integer number (4007916).

Almost surely, 2^21294058 is an apocalyptic number.

21294058 is a deficient number, since it is larger than the sum of its proper divisors (10769270).

21294058 is a wasteful number, since it uses less digits than its factorization.

21294058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40748.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 21294058 is about 4614.5485152938. The cubic root of 21294058 is about 277.1742052157.

The spelling of 21294058 in words is "twenty-one million, two hundred ninety-four thousand, fifty-eight".