154243400 has 24 divisors (see below), whose sum is σ = 358616370. Its totient is φ = 61697280.

The previous prime is 154243391. The next prime is 154243403. The reversal of 154243400 is 4342451.

It can be written as a sum of positive squares in 3 ways, for example, as 122456356 + 31787044 = 11066^2 + 5638^2 .

It is not an unprimeable number, because it can be changed into a prime (154243403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 385409 + ... + 385808.

Almost surely, 2^154243400 is an apocalyptic number.

154243400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

154243400 is an abundant number, since it is smaller than the sum of its proper divisors (204372970).

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

154243400 is a wasteful number, since it uses less digits than its factorization.

154243400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 771233 (or 771224 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 154243400 is about 12419.4766395368. The cubic root of 154243400 is about 536.2930843105.

Adding to 154243400 its reverse (4342451), we get a palindrome (158585851).

The spelling of 154243400 in words is "one hundred fifty-four million, two hundred forty-three thousand, four hundred".