425440837 has 16 divisors (see below), whose sum is σ = 461155840. Its totient is φ = 391117248.

The previous prime is 425440789. The next prime is 425440853. The reversal of 425440837 is 738044524.

It is a cyclic number.

It is not a de Polignac number, because 425440837 - 2¹¹ = 425438789 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a junction number, because it is equal to n+sod(n) for n = 425440796 and 425440805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425440937) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 426223 + ... + 427219.

It is an arithmetic number, because the mean of its divisors is an integer number (28822240).

Almost surely, 2^425440837 is an apocalyptic number.

It is an amenable number.

425440837 is a deficient number, since it is larger than the sum of its proper divisors (35715003).

425440837 is a wasteful number, since it uses less digits than its factorization.

425440837 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1660.

The product of its (nonzero) digits is 107520, while the sum is 37.

The square root of 425440837 is about 20626.2172246876. The cubic root of 425440837 is about 752.1071628678.

The spelling of 425440837 in words is "four hundred twenty-five million, four hundred forty thousand, eight hundred thirty-seven".