406430745 has 48 divisors (see below), whose sum is σ = 774966528. Its totient is φ = 181251840.

The previous prime is 406430719. The next prime is 406430753. The reversal of 406430745 is 547034604.

It is a happy number.

It is not a de Polignac number, because 406430745 - 2⁸ = 406430489 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 23392 + ... + 36878.

It is an arithmetic number, because the mean of its divisors is an integer number (16145136).

Almost surely, 2^406430745 is an apocalyptic number.

It is an amenable number.

406430745 is a deficient number, since it is larger than the sum of its proper divisors (368535783).

406430745 is a wasteful number, since it uses less digits than its factorization.

406430745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13550 (or 13543 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 33.

The square root of 406430745 is about 20160.1276037628. The cubic root of 406430745 is about 740.7338380170.

The spelling of 406430745 in words is "four hundred six million, four hundred thirty thousand, seven hundred forty-five".