838937430 has 48 divisors (see below), whose sum is σ = 2182967280. Its totient is φ = 223539264.

The previous prime is 838937423. The next prime is 838937431. The reversal of 838937430 is 34739838.

It is a happy number.

It is a super-2 number, since 2×838937430² = 1407632022910009800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (838937431) 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, 142281 + ... + 148059.

It is an arithmetic number, because the mean of its divisors is an integer number (45478485).

Almost surely, 2^838937430 is an apocalyptic number.

838937430 is an abundant number, since it is smaller than the sum of its proper divisors (1344029850).

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

838937430 is a wasteful number, since it uses less digits than its factorization.

838937430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7405 (or 7402 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The square root of 838937430 is about 28964.4166176362. The cubic root of 838937430 is about 943.1407805646.

The spelling of 838937430 in words is "eight hundred thirty-eight million, nine hundred thirty-seven thousand, four hundred thirty".