390726741 has 8 divisors (see below), whose sum is σ = 525748960. Its totient is φ = 258094512.

The previous prime is 390726709. The next prime is 390726769. The reversal of 390726741 is 147627093.

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

It is not a de Polignac number, because 390726741 - 2⁵ = 390726709 is a prime.

It is a super-2 number, since 2×390726741² = 305334772264962162, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 390726741.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390726841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 597115 + ... + 597768.

It is an arithmetic number, because the mean of its divisors is an integer number (65718620).

Almost surely, 2^390726741 is an apocalyptic number.

It is an amenable number.

390726741 is a deficient number, since it is larger than the sum of its proper divisors (135022219).

390726741 is a wasteful number, since it uses less digits than its factorization.

390726741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1194995.

The product of its (nonzero) digits is 63504, while the sum is 39.

The square root of 390726741 is about 19766.8090748102. The cubic root of 390726741 is about 731.0678941083.

The spelling of 390726741 in words is "three hundred ninety million, seven hundred twenty-six thousand, seven hundred forty-one".