1397184960 has 112 divisors (see below), whose sum is σ = 4497055776. Its totient is φ = 367460352.

The previous prime is 1397184949. The next prime is 1397184961. The reversal of 1397184960 is 694817931.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1397184961) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60112 + ... + 80048.

Almost surely, 2^1397184960 is an apocalyptic number.

1397184960 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 1397184960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2248527888).

1397184960 is an abundant number, since it is smaller than the sum of its proper divisors (3099870816).

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

1397184960 is a wasteful number, since it uses less digits than its factorization.

1397184960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20030 (or 20020 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 48.

The square root of 1397184960 is about 37378.9373845753. The cubic root of 1397184960 is about 1117.9386403686.

The spelling of 1397184960 in words is "one billion, three hundred ninety-seven million, one hundred eighty-four thousand, nine hundred sixty".