425040291 has 48 divisors (see below), whose sum is σ = 690834144. Its totient is φ = 259593984.

The previous prime is 425040283. The next prime is 425040311. The reversal of 425040291 is 192040524.

425040291 is a `hidden beast` number, since 4 + 250 + 402 + 9 + 1 = 666.

It is not a de Polignac number, because 425040291 - 2³ = 425040283 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425040271) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 495535 + ... + 496391.

It is an arithmetic number, because the mean of its divisors is an integer number (14392378).

Almost surely, 2^425040291 is an apocalyptic number.

425040291 is a deficient number, since it is larger than the sum of its proper divisors (265793853).

425040291 is a wasteful number, since it uses less digits than its factorization.

425040291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1042 (or 1030 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 425040291 is about 20616.5053052160. The cubic root of 425040291 is about 751.8710563160.

The spelling of 425040291 in words is "four hundred twenty-five million, forty thousand, two hundred ninety-one".