133420430 has 48 divisors (see below), whose sum is σ = 283731984. Its totient is φ = 44778240.

The previous prime is 133420423. The next prime is 133420433. The reversal of 133420430 is 34024331.

It is a super-2 number, since 2×133420430² = 35602022282769800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133420433) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15002 + ... + 22178.

It is an arithmetic number, because the mean of its divisors is an integer number (5911083).

Almost surely, 2^133420430 is an apocalyptic number.

133420430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

133420430 is an abundant number, since it is smaller than the sum of its proper divisors (150311554).

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

133420430 is a wasteful number, since it uses less digits than its factorization.

133420430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7221 (or 7208 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 133420430 is about 11550.7761643969. The cubic root of 133420430 is about 510.9841690453.

Adding to 133420430 its reverse (34024331), we get a palindrome (167444761).

The spelling of 133420430 in words is "one hundred thirty-three million, four hundred twenty thousand, four hundred thirty".