913993420 has 24 divisors (see below), whose sum is σ = 1925454384. Its totient is φ = 364441536.

The previous prime is 913993411. The next prime is 913993433. The reversal of 913993420 is 24399319.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65742 + ... + 78421.

It is an arithmetic number, because the mean of its divisors is an integer number (80227266).

Almost surely, 2^913993420 is an apocalyptic number.

It is an amenable number.

913993420 is an abundant number, since it is smaller than the sum of its proper divisors (1011460964).

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

913993420 is a wasteful number, since it uses less digits than its factorization.

913993420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144489 (or 144487 counting only the distinct ones).

The product of its (nonzero) digits is 52488, while the sum is 40.

The square root of 913993420 is about 30232.3240919384. The cubic root of 913993420 is about 970.4675607517.

The spelling of 913993420 in words is "nine hundred thirteen million, nine hundred ninety-three thousand, four hundred twenty".