390032742 has 16 divisors (see below), whose sum is σ = 850980672. Its totient is φ = 118191720.

The previous prime is 390032723. The next prime is 390032761. The reversal of 390032742 is 247230093.

It is an interprime number because it is at equal distance from previous prime (390032723) and next prime (390032761).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2954728 + ... + 2954859.

It is an arithmetic number, because the mean of its divisors is an integer number (53186292).

Almost surely, 2^390032742 is an apocalyptic number.

390032742 is an abundant number, since it is smaller than the sum of its proper divisors (460947930).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

390032742 is a wasteful number, since it uses less digits than its factorization.

390032742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5909603.

The product of its (nonzero) digits is 9072, while the sum is 30.

The square root of 390032742 is about 19749.2466185422. The cubic root of 390032742 is about 730.6348027959.

The spelling of 390032742 in words is "three hundred ninety million, thirty-two thousand, seven hundred forty-two".