406338542 has 8 divisors (see below), whose sum is σ = 610092000. Its totient is φ = 202974544.

The previous prime is 406338511. The next prime is 406338587. The reversal of 406338542 is 245833604.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×406338542² = 330222021429371528, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94742 + ... + 98937.

It is an arithmetic number, because the mean of its divisors is an integer number (76261500).

Almost surely, 2^406338542 is an apocalyptic number.

406338542 is a deficient number, since it is larger than the sum of its proper divisors (203753458).

406338542 is a wasteful number, since it uses less digits than its factorization.

406338542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194730.

The product of its (nonzero) digits is 69120, while the sum is 35.

The square root of 406338542 is about 20157.8407077742. The cubic root of 406338542 is about 740.6778194142.

The spelling of 406338542 in words is "four hundred six million, three hundred thirty-eight thousand, five hundred forty-two".