144457472740 has 96 divisors (see below), whose sum is σ = 357092870400. Its totient is φ = 48050993664.

The previous prime is 144457472723. The next prime is 144457472741. The reversal of 144457472740 is 47274754441.

It is a super-2 number, since 2×144457472740² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (144457472741) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1767867 + ... + 1847773.

It is an arithmetic number, because the mean of its divisors is an integer number (3719717400).

Almost surely, 2^144457472740 is an apocalyptic number.

144457472740 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 144457472740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178546435200).

144457472740 is an abundant number, since it is smaller than the sum of its proper divisors (212635397660).

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

144457472740 is a wasteful number, since it uses less digits than its factorization.

144457472740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80309 (or 80307 counting only the distinct ones).

The product of its (nonzero) digits is 3512320, while the sum is 49.

The spelling of 144457472740 in words is "one hundred forty-four billion, four hundred fifty-seven million, four hundred seventy-two thousand, seven hundred forty".