39470730 has 32 divisors (see below), whose sum is σ = 102017664. Its totient is φ = 9715776.

The previous prime is 39470677. The next prime is 39470731. The reversal of 39470730 is 3707493.

It is a junction number, because it is equal to n+sod(n) for n = 39470691 and 39470700.

It is not an unprimeable number, because it can be changed into a prime (39470731) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 50214 + ... + 50993.

It is an arithmetic number, because the mean of its divisors is an integer number (3188052).

Almost surely, 2^39470730 is an apocalyptic number.

39470730 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

39470730 is an abundant number, since it is smaller than the sum of its proper divisors (62546934).

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

39470730 is a wasteful number, since it uses less digits than its factorization.

39470730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101230.

The product of its (nonzero) digits is 15876, while the sum is 33.

The square root of 39470730 is about 6282.5735172778. The cubic root of 39470730 is about 340.4800887958.

The spelling of 39470730 in words is "thirty-nine million, four hundred seventy thousand, seven hundred thirty".