154245420 has 288 divisors, whose sum is σ = 597542400. Its totient is φ = 31352832.

The previous prime is 154245397. The next prime is 154245449. The reversal of 154245420 is 24542451.

154245420 = T₁₄₅₆ + T₁₄₅₇ + ... + T₁₅₈₈.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 406791 + ... + 407169.

It is an arithmetic number, because the mean of its divisors is an integer number (2074800).

Almost surely, 2^154245420 is an apocalyptic number.

154245420 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 154245420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (298771200).

154245420 is an abundant number, since it is smaller than the sum of its proper divisors (443296980).

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

154245420 is a wasteful number, since it uses less digits than its factorization.

154245420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437 (or 432 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 154245420 is about 12419.5579631483. The cubic root of 154245420 is about 536.2954254313.

Adding to 154245420 its reverse (24542451), we get a palindrome (178787871).

The spelling of 154245420 in words is "one hundred fifty-four million, two hundred forty-five thousand, four hundred twenty".