21394062 has 12 divisors (see below), whose sum is σ = 46353840. Its totient is φ = 7131348.

The previous prime is 21393989. The next prime is 21394063. The reversal of 21394062 is 26049312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21394063) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 594262 + ... + 594297.

It is an arithmetic number, because the mean of its divisors is an integer number (3862820).

Almost surely, 2^21394062 is an apocalyptic number.

21394062 is an abundant number, since it is smaller than the sum of its proper divisors (24959778).

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

21394062 is a wasteful number, since it uses less digits than its factorization.

21394062 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1188567 (or 1188564 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 21394062 is about 4625.3715526431. The cubic root of 21394062 is about 277.6074285787.

The spelling of 21394062 in words is "twenty-one million, three hundred ninety-four thousand, sixty-two".