1201897416 has 64 divisors (see below), whose sum is σ = 3204532800. Its totient is φ = 374335488.

The previous prime is 1201897397. The next prime is 1201897507. The reversal of 1201897416 is 6147981021.

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, 46116 + ... + 67308.

It is an arithmetic number, because the mean of its divisors is an integer number (50070825).

Almost surely, 2^1201897416 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1201897416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1602266400).

1201897416 is an abundant number, since it is smaller than the sum of its proper divisors (2002635384).

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

1201897416 is a wasteful number, since it uses less digits than its factorization.

1201897416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21358 (or 21354 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 39.

The square root of 1201897416 is about 34668.3921750058. The cubic root of 1201897416 is about 1063.2183590688.

The spelling of 1201897416 in words is "one billion, two hundred one million, eight hundred ninety-seven thousand, four hundred sixteen".