951440 has 40 divisors (see below), whose sum is σ = 2529600. Its totient is φ = 326016.

The previous prime is 951437. The next prime is 951449. The reversal of 951440 is 44159.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 951440.

It is not an unprimeable number, because it can be changed into a prime (951449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 290 + ... + 1409.

It is an arithmetic number, because the mean of its divisors is an integer number (63240).

2⁹⁵¹⁴⁴⁰ is an apocalyptic number.

It is an amenable number.

951440 is an abundant number, since it is smaller than the sum of its proper divisors (1578160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

951440 is a wasteful number, since it uses less digits than its factorization.

951440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1719 (or 1713 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 951440 is about 975.4178591763. The cubic root of 951440 is about 98.3544019460.

Adding to 951440 its reverse (44159), we get a palindrome (995599).

The spelling of 951440 in words is "nine hundred fifty-one thousand, four hundred forty".