425940091 has 8 divisors (see below), whose sum is σ = 427919360. Its totient is φ = 423966312.

The previous prime is 425940019. The next prime is 425940121. The reversal of 425940091 is 190049524.

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

It is a cyclic number.

It is not a de Polignac number, because 425940091 - 2⁷ = 425939963 is a prime.

It is a super-2 number, since 2×425940091² = 362849922242176562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (425940391) 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, 241270 + ... + 243028.

It is an arithmetic number, because the mean of its divisors is an integer number (53489920).

Almost surely, 2^425940091 is an apocalyptic number.

425940091 is a deficient number, since it is larger than the sum of its proper divisors (1979269).

425940091 is a wasteful number, since it uses less digits than its factorization.

425940091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2745.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 425940091 is about 20638.3160892550. The cubic root of 425940091 is about 752.4012466295.

The spelling of 425940091 in words is "four hundred twenty-five million, nine hundred forty thousand, ninety-one".