2349997453440 has 1280 divisors, whose sum is σ = 10936899832320. Its totient is φ = 466641616896.

The previous prime is 2349997453439. The next prime is 2349997453459. The reversal of 2349997453440 is 443547999432.

2349997453440 is a `hidden beast` number, since 2 + 3 + 4 + 9 + 9 + 97 + 4 + 534 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 80181829 + ... + 80211131.

It is an arithmetic number, because the mean of its divisors is an integer number (8544452994).

Almost surely, 2^{2349997453440} is an apocalyptic number.

2349997453440 is a gapful number since it is divisible by the number (20) 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 2349997453440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5468449916160).

2349997453440 is an abundant number, since it is smaller than the sum of its proper divisors (8586902378880).

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

2349997453440 is a wasteful number, since it uses less digits than its factorization.

2349997453440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29371 (or 29350 counting only the distinct ones).

The product of its (nonzero) digits is 117573120, while the sum is 63.

The spelling of 2349997453440 in words is "two trillion, three hundred forty-nine billion, nine hundred ninety-seven million, four hundred fifty-three thousand, four hundred forty".