402153441 has 4 divisors (see below), whose sum is σ = 536204592. Its totient is φ = 268102292.

The previous prime is 402153439. The next prime is 402153463. The reversal of 402153441 is 144351204.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 402153441 - 2¹ = 402153439 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (402153641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67025571 + ... + 67025576.

It is an arithmetic number, because the mean of its divisors is an integer number (134051148).

Almost surely, 2^402153441 is an apocalyptic number.

It is an amenable number.

402153441 is a deficient number, since it is larger than the sum of its proper divisors (134051151).

402153441 is a wasteful number, since it uses less digits than its factorization.

402153441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134051150.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 402153441 is about 20053.7637614489. The cubic root of 402153441 is about 738.1261581022.

The spelling of 402153441 in words is "four hundred two million, one hundred fifty-three thousand, four hundred forty-one".