397746030 has 64 divisors (see below), whose sum is σ = 1047541248. Its totient is φ = 95852160.

The previous prime is 397746023. The next prime is 397746053. The reversal of 397746030 is 30647793.

It is a self number, because there is not a number n which added to its sum of digits gives 397746030.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53607 + ... + 60573.

It is an arithmetic number, because the mean of its divisors is an integer number (16367832).

Almost surely, 2^397746030 is an apocalyptic number.

397746030 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 397746030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (523770624).

397746030 is an abundant number, since it is smaller than the sum of its proper divisors (649795218).

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

397746030 is a wasteful number, since it uses less digits than its factorization.

397746030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7161.

The product of its (nonzero) digits is 95256, while the sum is 39.

The square root of 397746030 is about 19943.5711446070. The cubic root of 397746030 is about 735.4197426631.

The spelling of 397746030 in words is "three hundred ninety-seven million, seven hundred forty-six thousand, thirty".