397041480 has 256 divisors, whose sum is σ = 1520640000. Its totient is φ = 91134720.

The previous prime is 397041473. The next prime is 397041529. The reversal of 397041480 is 84140793.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 224841 + ... + 226599.

It is an arithmetic number, because the mean of its divisors is an integer number (5940000).

Almost surely, 2^397041480 is an apocalyptic number.

397041480 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 397041480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (760320000).

397041480 is an abundant number, since it is smaller than the sum of its proper divisors (1123598520).

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

397041480 is a wasteful number, since it uses less digits than its factorization.

397041480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1809 (or 1799 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 397041480 is about 19925.8997287450. The cubic root of 397041480 is about 734.9852558475.

The spelling of 397041480 in words is "three hundred ninety-seven million, forty-one thousand, four hundred eighty".