427390049 has 4 divisors (see below), whose sum is σ = 427436736. Its totient is φ = 427343364.

The previous prime is 427390037. The next prime is 427390063. The reversal of 427390049 is 940093724.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 427390049 - 2⁸ = 427389793 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 427389994 and 427390021.

It is not an unprimeable number, because it can be changed into a prime (427390349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4589 + ... + 29594.

It is an arithmetic number, because the mean of its divisors is an integer number (106859184).

Almost surely, 2^427390049 is an apocalyptic number.

It is an amenable number.

427390049 is a deficient number, since it is larger than the sum of its proper divisors (46687).

427390049 is a wasteful number, since it uses less digits than its factorization.

427390049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46686.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 427390049 is about 20673.4140625103. The cubic root of 427390049 is about 753.2540384120.

The spelling of 427390049 in words is "four hundred twenty-seven million, three hundred ninety thousand, forty-nine".