402242054 has 4 divisors (see below), whose sum is σ = 603363084. Its totient is φ = 201121026.

The previous prime is 402242041. The next prime is 402242077. The reversal of 402242054 is 450242204.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×402242054² = 323597340012277832, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100560512 + ... + 100560515.

It is an arithmetic number, because the mean of its divisors is an integer number (150840771).

Almost surely, 2^402242054 is an apocalyptic number.

402242054 is a deficient number, since it is larger than the sum of its proper divisors (201121030).

402242054 is a wasteful number, since it uses less digits than its factorization.

402242054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201121029.

The product of its (nonzero) digits is 2560, while the sum is 23.

The square root of 402242054 is about 20055.9730255104. The cubic root of 402242054 is about 738.1803685628.

Adding to 402242054 its reverse (450242204), we get a palindrome (852484258).

The spelling of 402242054 in words is "four hundred two million, two hundred forty-two thousand, fifty-four".