398070030 has 16 divisors (see below), whose sum is σ = 955368144. Its totient is φ = 106152000.

The previous prime is 398069989. The next prime is 398070031. The reversal of 398070030 is 30070893.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 13269001 = 398070030 / (3 + 9 + 8 + 0 + 7 + 0 + 0 + 3 + 0).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 398070030.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398070031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6634471 + ... + 6634530.

It is an arithmetic number, because the mean of its divisors is an integer number (59710509).

Almost surely, 2^398070030 is an apocalyptic number.

398070030 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

398070030 is an abundant number, since it is smaller than the sum of its proper divisors (557298114).

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

398070030 is a wasteful number, since it uses less digits than its factorization.

398070030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13269011.

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 398070030 is about 19951.6924094173. The cubic root of 398070030 is about 735.6193770268.

The spelling of 398070030 in words is "three hundred ninety-eight million, seventy thousand, thirty".