154400032340 has 24 divisors (see below), whose sum is σ = 324248670312. Its totient is φ = 61758374400.

The previous prime is 154400032279. The next prime is 154400032349. The reversal of 154400032340 is 43230004451.

It can be written as a sum of positive squares in 4 ways, for example, as 67338436 + 154332693904 = 8206^2 + 392852^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154400032349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 918512 + ... + 1073528.

It is an arithmetic number, because the mean of its divisors is an integer number (13510361263).

Almost surely, 2^154400032340 is an apocalyptic number.

154400032340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

154400032340 is an abundant number, since it is smaller than the sum of its proper divisors (169848637972).

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

154400032340 is a wasteful number, since it uses less digits than its factorization.

154400032340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204827 (or 204825 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

Adding to 154400032340 its reverse (43230004451), we get a palindrome (197630036791).

The spelling of 154400032340 in words is "one hundred fifty-four billion, four hundred million, thirty-two thousand, three hundred forty".