197402949040 has 80 divisors (see below), whose sum is σ = 501012352800. Its totient is φ = 71736053760.

The previous prime is 197402949019. The next prime is 197402949061. The reversal of 197402949040 is 40949204791.

It is an interprime number because it is at equal distance from previous prime (197402949019) and next prime (197402949061).

It is a tau number, because it is divible by the number of its divisors (80).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1290712 + ... + 1435528.

It is an arithmetic number, because the mean of its divisors is an integer number (6262654410).

Almost surely, 2^197402949040 is an apocalyptic number.

197402949040 is a gapful number since it is divisible by the number (10) 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 197402949040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (250506176400).

197402949040 is an abundant number, since it is smaller than the sum of its proper divisors (303609403760).

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

197402949040 is a wasteful number, since it uses less digits than its factorization.

197402949040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146390 (or 146384 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 49.

The spelling of 197402949040 in words is "one hundred ninety-seven billion, four hundred two million, nine hundred forty-nine thousand, forty".