394457226100 has 72 divisors (see below), whose sum is σ = 990040258368. Its totient is φ = 133613030400.

The previous prime is 394457226049. The next prime is 394457226101. The reversal of 394457226100 is 1622754493.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394457226101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3336541 + ... + 3452740.

It is an arithmetic number, because the mean of its divisors is an integer number (13750559144).

Almost surely, 2^394457226100 is an apocalyptic number.

It is an amenable number.

394457226100 is an abundant number, since it is smaller than the sum of its proper divisors (595583032268).

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

394457226100 is a wasteful number, since it uses less digits than its factorization.

394457226100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6789385 (or 6789378 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 43.

The spelling of 394457226100 in words is "three hundred ninety-four billion, four hundred fifty-seven million, two hundred twenty-six thousand, one hundred".