402244437 has 16 divisors (see below), whose sum is σ = 632717312. Its totient is φ = 222438960.

The previous prime is 402244417. The next prime is 402244441. The reversal of 402244437 is 734442204.

It is a happy number.

It is not a de Polignac number, because 402244437 - 2⁶ = 402244373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402244417) 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, 308293 + ... + 309594.

It is an arithmetic number, because the mean of its divisors is an integer number (39544832).

Almost surely, 2^402244437 is an apocalyptic number.

It is an amenable number.

402244437 is a deficient number, since it is larger than the sum of its proper divisors (230472875).

402244437 is a wasteful number, since it uses less digits than its factorization.

402244437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617928.

The product of its (nonzero) digits is 21504, while the sum is 30.

The square root of 402244437 is about 20056.0324341581. The cubic root of 402244437 is about 738.1818262923.

The spelling of 402244437 in words is "four hundred two million, two hundred forty-four thousand, four hundred thirty-seven".