406020452 has 48 divisors (see below), whose sum is σ = 767999232. Its totient is φ = 187130880.

The previous prime is 406020437. The next prime is 406020473. The reversal of 406020452 is 254020604.

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, 1305377 + ... + 1305687.

It is an arithmetic number, because the mean of its divisors is an integer number (15999984).

Almost surely, 2^406020452 is an apocalyptic number.

It is an amenable number.

406020452 is a deficient number, since it is larger than the sum of its proper divisors (361978780).

406020452 is a wasteful number, since it uses less digits than its factorization.

406020452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 668 (or 666 counting only the distinct ones).

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

The square root of 406020452 is about 20149.9491810774. The cubic root of 406020452 is about 740.4844964515.

The spelling of 406020452 in words is "four hundred six million, twenty thousand, four hundred fifty-two".