153420440 has 64 divisors (see below), whose sum is σ = 375948000. Its totient is φ = 56125440.

The previous prime is 153420331. The next prime is 153420451. The reversal of 153420440 is 44024351.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18560 + ... + 25520.

Almost surely, 2^153420440 is an apocalyptic number.

153420440 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 153420440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187974000).

153420440 is an abundant number, since it is smaller than the sum of its proper divisors (222527560).

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

153420440 is a wasteful number, since it uses less digits than its factorization.

153420440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7020 (or 7016 counting only the distinct ones).

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

The square root of 153420440 is about 12386.3004969200. The cubic root of 153420440 is about 535.3375922695.

Adding to 153420440 its reverse (44024351), we get a palindrome (197444791).

The spelling of 153420440 in words is "one hundred fifty-three million, four hundred twenty thousand, four hundred forty".