153020840 has 64 divisors (see below), whose sum is σ = 410607360. Its totient is φ = 50181120.

The previous prime is 153020809. The next prime is 153020843. The reversal of 153020840 is 48020351.

153020840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (153020843) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5441 + ... + 18320.

It is an arithmetic number, because the mean of its divisors is an integer number (6415740).

Almost surely, 2^153020840 is an apocalyptic number.

153020840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

153020840 is an abundant number, since it is smaller than the sum of its proper divisors (257586520).

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

153020840 is a wasteful number, since it uses less digits than its factorization.

153020840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23802 (or 23798 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 153020840 is about 12370.1592552400. The cubic root of 153020840 is about 534.8724067576.

The spelling of 153020840 in words is "one hundred fifty-three million, twenty thousand, eight hundred forty".