542245405 has 32 divisors (see below), whose sum is σ = 719712000. Its totient is φ = 389740032.

The previous prime is 542245399. The next prime is 542245441. The reversal of 542245405 is 504542245.

It is a cyclic number.

It is not a de Polignac number, because 542245405 - 2⁵ = 542245373 is a prime.

It is a super-2 number, since 2×542245405² = 588060158487228050, 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 31 ways as a sum of consecutive naturals, for example, 386896 + ... + 388294.

It is an arithmetic number, because the mean of its divisors is an integer number (22491000).

Almost surely, 2^542245405 is an apocalyptic number.

It is an amenable number.

542245405 is a deficient number, since it is larger than the sum of its proper divisors (177466595).

542245405 is a wasteful number, since it uses less digits than its factorization.

542245405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1573.

The product of its (nonzero) digits is 32000, while the sum is 31.

The square root of 542245405 is about 23286.1633808577. The cubic root of 542245405 is about 815.4524217203.

The spelling of 542245405 in words is "five hundred forty-two million, two hundred forty-five thousand, four hundred five".