542690690 has 16 divisors (see below), whose sum is σ = 977704128. Its totient is φ = 216884976.

The previous prime is 542690657. The next prime is 542690747. The reversal of 542690690 is 96096245.

It is a super-2 number, since 2×542690690² = 589026370025352200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11702 + ... + 34961.

It is an arithmetic number, because the mean of its divisors is an integer number (61106508).

Almost surely, 2^542690690 is an apocalyptic number.

542690690 is a deficient number, since it is larger than the sum of its proper divisors (435013438).

542690690 is a wasteful number, since it uses less digits than its factorization.

542690690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47833.

The product of its (nonzero) digits is 116640, while the sum is 41.

The square root of 542690690 is about 23295.7225687464. The cubic root of 542690690 is about 815.6755736857.

The spelling of 542690690 in words is "five hundred forty-two million, six hundred ninety thousand, six hundred ninety".