154243340 has 24 divisors (see below), whose sum is σ = 325790640. Its totient is φ = 61339328.

The previous prime is 154243301. The next prime is 154243361. The reversal of 154243340 is 43342451.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18830 + ... + 25749.

It is an arithmetic number, because the mean of its divisors is an integer number (13574610).

Almost surely, 2^154243340 is an apocalyptic number.

154243340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

154243340 is an abundant number, since it is smaller than the sum of its proper divisors (171547300).

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

154243340 is a wasteful number, since it uses less digits than its factorization.

154243340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44761 (or 44759 counting only the distinct ones).

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

The square root of 154243340 is about 12419.4742239758. The cubic root of 154243340 is about 536.2930147719.

Adding to 154243340 its reverse (43342451), we get a palindrome (197585791).

The spelling of 154243340 in words is "one hundred fifty-four million, two hundred forty-three thousand, three hundred forty".