421153040 has 120 divisors (see below), whose sum is σ = 1242724032. Its totient is φ = 131255040.

The previous prime is 421153037. The next prime is 421153063. The reversal of 421153040 is 40351124.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38237 + ... + 48003.

Almost surely, 2^421153040 is an apocalyptic number.

421153040 is a gapful number since it is divisible by the number (40) 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 421153040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (621362016).

421153040 is an abundant number, since it is smaller than the sum of its proper divisors (821570992).

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

421153040 is a wasteful number, since it uses less digits than its factorization.

421153040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9805 (or 9792 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 421153040 is about 20522.0135464335. The cubic root of 421153040 is about 749.5719275703.

The spelling of 421153040 in words is "four hundred twenty-one million, one hundred fifty-three thousand, forty".