405148933 has 32 divisors (see below), whose sum is σ = 498216960. Its totient is φ = 322605360.

The previous prime is 405148901. The next prime is 405148969. The reversal of 405148933 is 339841504.

It is not a de Polignac number, because 405148933 - 2⁵ = 405148901 is a prime.

It is a super-2 number, since 2×405148933² = 328291315822076978, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 405148892 and 405148901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405148993) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5706288 + ... + 5706358.

It is an arithmetic number, because the mean of its divisors is an integer number (15569280).

Almost surely, 2^405148933 is an apocalyptic number.

It is an amenable number.

405148933 is a deficient number, since it is larger than the sum of its proper divisors (93068027).

405148933 is an frugal number, since it uses more digits than its factorization.

405148933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214 (or 168 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 405148933 is about 20128.3117275146. The cubic root of 405148933 is about 739.9543026322.

The spelling of 405148933 in words is "four hundred five million, one hundred forty-eight thousand, nine hundred thirty-three".