154740040 has 96 divisors (see below), whose sum is σ = 436234680. Its totient is φ = 48964608.

The previous prime is 154740017. The next prime is 154740059. The reversal of 154740040 is 40047451.

It can be written as a sum of positive squares in 4 ways, for example, as 128913316 + 25826724 = 11354^2 + 5082^2 .

It is a junction number, because it is equal to n+sod(n) for n = 154739987 and 154740014.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22444 + ... + 28516.

Almost surely, 2^154740040 is an apocalyptic number.

154740040 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 154740040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (218117340).

154740040 is an abundant number, since it is smaller than the sum of its proper divisors (281494640).

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

154740040 is a wasteful number, since it uses less digits than its factorization.

154740040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6111 (or 6100 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 154740040 is about 12439.4549719833. The cubic root of 154740040 is about 536.8680613593.

Adding to 154740040 its reverse (40047451), we get a palindrome (194787491).

The spelling of 154740040 in words is "one hundred fifty-four million, seven hundred forty thousand, forty".