402372441 has 20 divisors (see below), whose sum is σ = 602160372. Its totient is φ = 267763968.

The previous prime is 402372431. The next prime is 402372461. The reversal of 402372441 is 144273204.

It can be written as a sum of positive squares in 2 ways, for example, as 145443600 + 256928841 = 12060^2 + 16029^2 .

It is not a de Polignac number, because 402372441 - 2¹⁴ = 402356057 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (402372431) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 43845 + ... + 52221.

Almost surely, 2^402372441 is an apocalyptic number.

It is an amenable number.

402372441 is a deficient number, since it is larger than the sum of its proper divisors (199787931).

402372441 is an equidigital number, since it uses as much as digits as its factorization.

402372441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8982 (or 8973 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 27.

The square root of 402372441 is about 20059.2233399003. The cubic root of 402372441 is about 738.2601204807.

The spelling of 402372441 in words is "four hundred two million, three hundred seventy-two thousand, four hundred forty-one".